Fix changeset loading issue for "Download Raw Diff" in Differential

Summary: Fixes T5309. Modernize this callsite to use ChangesetQuery and pick up attached objects.

Test Plan: Clicked "Download Raw Diff" in Differential.

Reviewers: btrahan, chad

Reviewed By: chad

Subscribers: epriestley

Maniphest Tasks: T5309

Differential Revision: https://secure.phabricator.com/D9461
Remove `PhabricatorBotDifferentialNotificationHandler` reference in example_config.json for phabot

Summary: D9468 removed deprecated PhabricatorBotDifferentialNotificationHandler. So, lets remove it from the example json.

Test Plan: Verify json is valid, launch a phabot instance with it

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9477
Make the Aphlict server more resilient.

Summary:
Currently, the Aphlict server will crash if invalid JSON data is `POST`ed to it. I have fixed this to, instead, return a 400. Also made some minor formatting changes.

Ref T4324. Ref T5284. Also, modify the data structure that is passed around (i.e. `POST`ed to the Aphlict server and broadcast to the Aphlict clients) to include the subscribers. Initially, I figured that we shouldn't expose this information to the clients... however, it is necessary for T4324 that the `AphlictMaster` is able to route a notification to the appropriate clients.

Test Plan:
Making the following `curl` request: `curl --data "{" http://localhost:22281/`.

**Before**
```
sudo ./bin/aphlict debug
Starting Aphlict server in foreground...
Launching server:

    $ 'nodejs' '/usr/src/phabricator/src/applications/aphlict/management/../../../../support/aphlict/server/aphlict_server.js' --port='22280' --admin='22281' --host='localhost' --user='aphlict'

[Wed Jun 11 2014 17:07:51 GMT+0000 (UTC)] Started Server (PID 2033)
[Wed Jun 11 2014 17:07:55 GMT+0000 (UTC)]
<<< UNCAUGHT EXCEPTION! >>>

SyntaxError: Unexpected end of input
>>> Server exited!
```

**After**
(No output... the bad JSON is caught and a 400 is returned)

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T4324, T5284

Differential Revision: https://secure.phabricator.com/D9480
Use JS to manage dashboard tab panels

Summary: Fixes T5271. This is mostly similar to normal tab panel JS, but I think we'll eventually do async rendering and/or saved tabs so it's reasonable to split it out.

Test Plan: Toggled tabs on a tab panel, saw tab selected state change.

Reviewers: btrahan, chad

Reviewed By: chad

Subscribers: epriestley

Maniphest Tasks: T5271

Differential Revision: https://secure.phabricator.com/D9478
Add hover state to white header icons

Summary: Adds a hover state and color for white headers. Fixes T5318

Test Plan: Test on managing a dashboard.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5318

Differential Revision: https://secure.phabricator.com/D9482
Print out stack traces when Aphlict server dies

Summary: Printing out `err` is less informative than `err.stack`, which has the message, type, //and// a trace.

Test Plan:
Faked an exception, then:

```
$ sudo ./bin/aphlict debug
Starting Aphlict server in foreground...
Launching server:

    $ 'node' '/INSECURE/devtools/phabricator/src/applications/aphlict/management/../../../../support/aphlict/server/aphlict_server.js' --port='22280' --admin='22281' --host='localhost'

[Wed Jun 11 2014 10:20:39 GMT-0700 (PDT)]
<<< UNCAUGHT EXCEPTION! >>>
Error: Example Exception
    at Object.<anonymous> (/INSECURE/devtools/phabricator/support/aphlict/server/aphlict_server.js:73:7)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:901:3
>>> Server exited!
```

Reviewers: joshuaspence

Reviewed By: joshuaspence

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D9481
Update chatbot documentation

Summary:
Remove's PhabricatorBotDifferentialNotificationHandler documentation and adds in:
PhabricatorBotFeedNotificationHandler
PhabricatorBotSymbolHandler
PhabricatorBotMacroHandler

Should have been included in D9477

Test Plan: Read it..?

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9479
Modify the Aphlict server to transmit messages instead of broadcasting them.

Summary: Ref T4324. Ref T5284. This adds server-side support for keeping track of a set of PHIDs that the Aphlict clients have subscribed to. Instead of broadcasting a notification to all clients (after which the clients can poll `/notification/individual` in order to determine whether or not they are interested in the notification), transmit notifications only to clients that have subscribed to a PHID that is relevant to the notification.

Test Plan:
I opened up two clients on the same host (incognito tabs in Chrome). Here is the output from the server:

```
> sudo ./bin/aphlict debug
Starting Aphlict server in foreground...
Launching server:

    $ 'nodejs' '/usr/src/phabricator/src/applications/aphlict/management/../../../../support/aphlict/server/aphlict_server.js' --port='22280' --admin='22281' --host='localhost' --user='aphlict'

[Wed Jun 11 2014 19:10:27 GMT+0000 (UTC)] Started Server (PID 4546)
[Wed Jun 11 2014 19:10:36 GMT+0000 (UTC)] <FlashPolicy> Policy Request From ::ffff:192.168.1.1
[Wed Jun 11 2014 19:10:37 GMT+0000 (UTC)] <Listener/1> Connected from ::ffff:192.168.1.1
[Wed Jun 11 2014 19:10:37 GMT+0000 (UTC)] <Listener/1> Received data: {"command":"subscribe","data":["PHID-USER-cb5af6p4oepy5tlgqypi"]}
[Wed Jun 11 2014 19:10:37 GMT+0000 (UTC)] <Listener/1> Subscribed to: ["PHID-USER-cb5af6p4oepy5tlgqypi"]
[Wed Jun 11 2014 19:10:39 GMT+0000 (UTC)] <Listener/1> Received data: {"command":"subscribe","data":["PHID-USER-kfohe3ca5oe6ygykmioq"]}
[Wed Jun 11 2014 19:10:39 GMT+0000 (UTC)] <Listener/1> Subscribed to: ["PHID-USER-kfohe3ca5oe6ygykmioq"]
[Wed Jun 11 2014 19:10:42 GMT+0000 (UTC)] notification: {"key":"6023751084283587681","type":"notification","subscribers":["PHID-USER-cb5af6p4oepy5tlgqypi"]}
[Wed Jun 11 2014 19:10:42 GMT+0000 (UTC)] <Listener/1> Wrote Message
```

I verified (using the "Network" tab in Chrome) that an AJAX request to `/notification/individual/` was only made in the tab belonging to the user that triggered the test notification.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Maniphest Tasks: T5284, T4324

Differential Revision: https://secure.phabricator.com/D9458
Make Conpherence threads update in real time, very roughly

Summary:
Ref T4083. This needs some work (mostly in the Conpherence JS itself), but is sort of functional. In particular:

  - On thread pages, add the thread as a `pageObject`.
  - After updating a thread, send a new "message" event to the server.
  - Share a little more event posting code.
  - In the browser, use event dispatch to respond to events.
  - Add a listener for the new event type.
  - Update conpherence threads (this part is really yucky).

Test Plan: With multiple browser windows / browsers open, posted a message to a thread, and saw it update everywhere.

Reviewers: joshuaspence

Reviewed By: joshuaspence

Subscribers: chad, epriestley

Maniphest Tasks: T4083

Differential Revision: https://secure.phabricator.com/D9486
Move subscription updates to the `register` function.

Summary: Currently, the `AphlictClient` will only send its subscriptions to the `AphlictMaster` once. If the original `AphlictMaster` is closed and a new master is created, then client subscriptions will be lost.

Test Plan: Opened two separate tabs. Closed the "master" tab and noticed that the subscriptions were re-sent to the server.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9487
Lighten remarkup box in Conpherence

Summary: These should be thin, not light

Test Plan: reload html

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9490
Slighly better paste object items

Summary: Makes the code view have a border, proper spacing.

Test Plan: view a list of pastes

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9491
Implement unsubscription in the Aphlict client.

Summary: Ref T5284. When an `AphlictClient` is closed, it will eventually be purged from the pool by the `AphlictMaster`. When this happens, also unsubscribe the purged client from all notifications, and send an `unsubscribe` command to the Aphlict server if possible.

Test Plan:
Verified the output of the Aphlict server (running in debug mode):

```
[Wed Jun 11 2014 23:21:31 GMT+0000 (UTC)] <FlashPolicy> Policy Request From ::ffff:192.168.1.1
[Wed Jun 11 2014 23:21:31 GMT+0000 (UTC)] <Listener/2> Connected from ::ffff:192.168.1.1
[Wed Jun 11 2014 23:21:31 GMT+0000 (UTC)] <Listener/2> Received data: {"command":"subscribe","data":["PHID-USER-cb5af6p4oepy5tlgqypi"]}
[Wed Jun 11 2014 23:21:31 GMT+0000 (UTC)] <Listener/2> Subscribed to: ["PHID-USER-cb5af6p4oepy5tlgqypi"]
[Wed Jun 11 2014 23:21:39 GMT+0000 (UTC)] <Listener/2> Received data: {"command":"subscribe","data":["PHID-TASK-l2dtbs5xrt2b7abgh5a6"]}
[Wed Jun 11 2014 23:21:39 GMT+0000 (UTC)] <Listener/2> Subscribed to: ["PHID-TASK-l2dtbs5xrt2b7abgh5a6"]
[Wed Jun 11 2014 23:21:57 GMT+0000 (UTC)] <Listener/2> Received data: {"command":"unsubscribe","data":["PHID-TASK-l2dtbs5xrt2b7abgh5a6"]}
[Wed Jun 11 2014 23:21:57 GMT+0000 (UTC)] <Listener/2> Unsubscribed from: ["PHID-TASK-l2dtbs5xrt2b7abgh5a6"]
```

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5284

Differential Revision: https://secure.phabricator.com/D9492
Return the build from applyPlan instead of the plan

Summary: Nothing inside Phabricator uses the return value of this method, but returning the actual build instance is far more useful (for kicking off builds in an application and storing the build PHID against another object).

Test Plan: N/A

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9494
Clean up error state on Dashboards

Summary: A more basic error view

Test Plan:
Made stuff up

{F165315}

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5319

Differential Revision: https://secure.phabricator.com/D9495
Move icon inside link in ActionLink

Summary: Moves the icon into the link

Test Plan: Tested a form (Phrequent), disabled, and regular action link

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5331

Differential Revision: https://secure.phabricator.com/D9503
Style quote reply headers

Summary: Adds some minor tweaks to the Quoted Remarkup rules. I tried altering the nested quote as well, but it became a bit of a joke quickly, not sure there is benefit there. Fixes T4962

Test Plan:
Quoted lots of times.

{F165606}

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T4962

Differential Revision: https://secure.phabricator.com/D9502
Edit dashboard panels in a dialog instead of on a separate page

Summary: When you "Edit Panel" on a dashboard, pop a dialog instead of redirecting to a different page.

Test Plan: Edited a panel from a dashboard; edited a panel from the panel workflow.

Reviewers: chad

Reviewed By: chad

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D9499
Allow users to select QueryPanel search engines from a list

Summary: Ref T4986. Instead of requiring users to know the name of an application search engine class, let them select from a list.

Test Plan:
Created a new panel.

{F165468}

Reviewers: chad

Reviewed By: chad

Subscribers: epriestley

Maniphest Tasks: T4986

Differential Revision: https://secure.phabricator.com/D9500
Create dashboard panels inline on dashboards

Summary:
Fixes T5308.

  - Allows you to create a panel directly on a dashboard.
  - Also, include existing panels with a select instead of a text field. This won't scale as well but should be fine for now, and is way easier to use.

Test Plan: See comment.

Reviewers: chad

Reviewed By: chad

Subscribers: epriestley

Maniphest Tasks: T5308

Differential Revision: https://secure.phabricator.com/D9501