Conversation UI
Basic UI done
Polish read-only UI
UI Polish
Finished message sending
Realtime directive
Reorganized logic
Polish messages UI
Fixed error when no conversation
i18n interpolation
Add confirmation before deleting action
Cancel photos extension notification while change view
Improve & UI tweak
Tweak layout for Firefox 19- & IE 10, Firefox 20+ still to be test
Fallback to XUL flexbox in Firefox 20+

Firefox 20+ implement a standard flexbox, but works different with
chrome. Need to tweak later.
Support multi-line editing.

Shift+Enter to a new line
UI Tweak
A pretty rough version that support authoring receivers...
Finish receivers authoring function & bug fix
UI Tweaking