Fix two minor Differential issues

Summary:
  - D6966 accidentally reversed the order of `$diffs`. Reverse it back.
  - The new policy header stuff returns `array(icon, text)` but gets `strlen()`'d by a caller. Silence that warning for now.

Test Plan: Created a revision with several diffs. Saw them in the right order; saw no warning on the diff attach screen.

Reviewers: chad, btrahan

Reviewed By: chad

CC: aran, mbishopim3

Differential Revision: https://secure.phabricator.com/D7023
Conduit - Add option for createcomment to attach draft inline comments

Summary:
Conduit has a query to make a draft inline comment, but createcomment doesn't have the ability to attach them.
Added optional parameter to attach any existing draft comments. Default value is false, so existing api users won't be effected by the change.

Test Plan: Tested no draft comments and multiple draft comments, attach_inlines =true, false, and empty.

Reviewers: vrana

Reviewed By: vrana

CC: epriestley, aran

Differential Revision: https://secure.phabricator.com/D7019
Support captions in StandardField

Summary: Support captions, so this can replace the Maniphest version.

Test Plan: See screenshot.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D7020
Fix tokenizer input of Japanese glyphs

Summary: Fixes T3834. We have some hack code here for Firefox, but I can't reproduce the original Firefox issue in modern Firefox. It's better to break weird copy/paste edge cases than all Japanese input, in any case.

Test Plan: See screenshot.

Reviewers: chad, btrahan

Reviewed By: chad

CC: aran

Maniphest Tasks: T3834

Differential Revision: https://secure.phabricator.com/D7024
Use PhutilBugtraqParser in Phabricator

Summary: Fixes T3840. Depends on D7021. See task for discussion. Also improved some config/help stuff.

Test Plan: See screenshot.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T3840

Differential Revision: https://secure.phabricator.com/D7022
Minor fix to minor fix to diff order

Summary: We need to preserve keys here; the keys are the diff IDs and are meaningful.

Auditors: btrahan
Only return description in Policy description if no image required

Summary: We were returning an array here when  previous return was a string.

Test Plan: reload diff

Reviewers: epriestley

Reviewed By: epriestley

CC: Korvin, aran

Differential Revision: https://secure.phabricator.com/D7025