Allows a button type for menus, used in Conpherence

Summary: This adds a new menu item, TYPEBUTTON, for use in Conpherence and maybe others over time. Note I need to add icon support, but I'll make them later tonight. I also changed the front facing names to 'Conversations' which is way more natural. Basically, Pholio has Mocks, Differential has Diffs, Conpherence has Conversations.

Test Plan: Tested Conpherence on mobile and desktop.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2430

Differential Revision: https://secure.phabricator.com/D4691
Add missing Conpherence icon + generate hovers

Summary: Added missing sprite images and added hover classes to sprite generator class.

Test Plan: read the CSS

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4721
Not include mailing lists in revisions search

Summary: Neither author nor reviewer can be a mailing list.

Test Plan: /differential/filter/revisions/, saw "Type a user name".

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4722
Adding ':' as a supported character in Macros.

Summary: Adding ':' in order to support SA-style smiley conventions (e.g: :allears:) in Phabricator.

Test Plan: Tested working on local Phabricator copy.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D4727
fix differential style break if you cancel inline comment before posting

Summary: see title. Thanks for the report @poop

Test Plan: loaded up FF, left a comment but did not submit and instead cancelled - observed sane UI

Reviewers: epriestley, vrana, poop

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2460

Differential Revision: https://secure.phabricator.com/D4728
improve image hinting for 220 preview

Summary: break out the calculation of dimensions as a static method and use it

Test Plan: made a conpherence with many images and noted i auto-scrolled to the bottom correctly

Reviewers: chad, epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2399

Differential Revision: https://secure.phabricator.com/D4733
Conpherence - make empty comment submission behave like other apps

Summary: now we get a "you can't submit no text" error. Also puts the participant status updating inside the editor.

Test Plan: made empty comments and got the right error dialogue. made legit comments and they went through. made a new conpherence - work. edited title + picture on old conpherence - worked. tried to submit non-updates to title and image - correct error.

Reviewers: epriestley, chad

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2419

Differential Revision: https://secure.phabricator.com/D4734
Returning simple text error message instead of HTML for requests where HTML won't be rendered for the user. Fixes T2401.

Summary: If the check is too much, let me know. I noticed you send over __ajax__=true, so I figured it was safest to evaluate existance and value.

Test Plan: Included unit test. Would have included a test where __ajax__ and __conduit__ are not set, but without mocking this gives an uncatchable Fatal Error. If you want me to include it, just direct me on the mocking strategy.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2401

Differential Revision: https://secure.phabricator.com/D4719
Code Refactored

Summary: Code Refactored as suggested by epriestley

Test Plan: Same test plan as of Installation & Uninstallation of Applications

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4740
Merge branch 'master' of http://github.com/facebook/phabricator