Make XHProf easier for me to use with other users

Summary: Ideally there should be a "send epriestley this profile" button but this is a reasonable step forward. Add a "download .xhprof profile" button to profiles, since walking through these things remotely is pretty awkward. Also expand "Excl" and "Incl" acronyms.

Test Plan: Clicked download button.

Reviewers: csilvers, btrahan, vrana

Reviewed By: csilvers

CC: aran

Differential Revision: https://secure.phabricator.com/D2523
Allow installs to require email verification

Summary:
Allow installs to require users to verify email addresses before they can use Phabricator. If a user logs in without a verified email address, they're given instructions to verify their address.

This isn't too useful on its own since we don't actually have arbitrary email registration, but the next step is to allow installs to restrict email to only some domains (e.g., @mycompany.com).

Test Plan:
  - Verification
    - Set verification requirement to `true`.
    - Tried to use Phabricator with an unverified account, was told to verify.
    - Tried to use Conduit, was given a verification error.
    - Verified account, used Phabricator.
    - Unverified account, reset password, verified implicit verification, used Phabricator.
  - People Admin Interface
    - Viewed as admin. Clicked "Administrate User".
    - Viewed as non-admin
  - Sanity Checks
    - Used Conduit normally from web/CLI with a verified account.
    - Logged in/out.
    - Sent password reset email.
    - Created a new user.
    - Logged in with an unverified user but with the configuration set to off.

Reviewers: btrahan, vrana, jungejason

Reviewed By: btrahan

CC: aran, csilvers

Maniphest Tasks: T1184

Differential Revision: https://secure.phabricator.com/D2520
Don't mix different users on the same line in Calendar

Summary:
The current state is very confusing:
{F11734, size=full}

Test Plan: Display calendar for user with two different events in the same week.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: aran, Koolvin

Differential Revision: https://secure.phabricator.com/D2522
variable name incorrect

Summary: as title

Test Plan: no

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Koolvin

Differential Revision: https://secure.phabricator.com/D2526
Bump Conduit server version

Summary:
We introduced a "user.query" call recently which is only about two weeks old. Bump versions so users get a forced upgrade.

Also, we raise a fairly confusing message when the user calls a nonexistent method. This is not the intent; `class_exists()` throws. Tailor this exception more carefully.

Test Plan:
  - Ran `echo {} | arc call-conduit derp.derp`, got a better exception.
  - Bumped version, ran `arc list`, got told to upgrade.

Reviewers: indiefan, nh, vrana, btrahan, jungejason, Makinde

Reviewed By: vrana

CC: aran

Differential Revision: https://secure.phabricator.com/D2527
Remove email from handles

Summary:
Since user emails aren't in the user table, we had to do extra data fetching
for handles, and the emails are only used in MetaMTA, so we move the email
code into MetaMTA and remove it from handles.

Test Plan: send test emails

Reviewers: jungejason, vrana, epriestley

Reviewed By: epriestley

CC: aran, Koolvin

Differential Revision: https://secure.phabricator.com/D2494
Minor, fix a documentation link (thanks, @ipalaus!).
Prevent loops in received mail

Summary:
It's currently possible to configure Phabricator to send mail to some address it recognizes as relating to an object.

When we receive mail from Phabricator, drop it unconditionally.

Test Plan: Wrote two emails, one with the header and one without. Piped them to `mail_handler.php`, one was dropped immediately.

Reviewers: btrahan, nh, mikaaay, jungejason

Reviewed By: jungejason

CC: aran

Differential Revision: https://secure.phabricator.com/D2529
Support more aliases of "Test Plan" in commit messages

Summary: Add support for "tests", "testplan" and "tested" as alias of "Test Plan".

Test Plan: Created a diff with test plan specified in "tests".

Reviewers: csilvers, btrahan

Reviewed By: csilvers

CC: aran

Differential Revision: https://secure.phabricator.com/D2531
Use "-b", not "--branch", when issuing "hg log" in Phabricator

Summary:
Mercurial renamed "--only-branch" to "--branch" about two years ago. "-b" exists in both versions.

http://www.selenic.com/pipermail/mercurial-devel/2010-April/020469.html

We have a few other cases where we use features that exist only in recent Mercurial (notably, 'ancestors' in log) but we can work around this one easily.

Test Plan: Looked at a Mercurial repo in Diffusion, verified that "log -b" commands issued and that the output was correct.

Reviewers: btrahan, Makinde, ipalaus

Reviewed By: ipalaus

CC: aran

Maniphest Tasks: T1264

Differential Revision: https://secure.phabricator.com/D2533
Add owners.query method

Summary:
Allow callers to find all packages/paths owned by a given
user/project.

Test Plan:
Used conduit api page with --
user owner: PHID-USER-6ce1c976b86e5f3c34f6 (tried both loadPackagesFromProjects
true/false)

proj owner: PHID-PROJ-r5wnmmaawqsn4tvjmqm4

repo/path: E, /tfb/trunk/www/flib/privacy. Checked both path.getowners
and owners.query

(all of these are defined internally at fb)

Reviewers: epriestley, btrahan, nh

Reviewed By: btrahan

CC: aran, Koolvin

Differential Revision: https://secure.phabricator.com/D2482
Add self-links for Differential and Maniphest

Summary:
See:

https://groups.google.com/forum/?fromgroups#!topic/phabricator-dev/WolHZVVJB7k

Render the `D3`, `T132`, etc., in the title as a link instead of in grey text. Also clean up some related CSS.

Test Plan: Looked at a revision and a task.

Reviewers: btrahan, asherwin

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D2534
Merge branch 'master' of http://github.com/facebook/phabricator