TrayIcon: Add NumerableTrayIcon base class and implement TrayIcon and
UnityLauncher on top of it. Refs #1557
fixes
messagingmenu: fix crash with gtk3
e3/base: add new TYPE_PICTURE message
e3: picture message
e3/base: add picture cache to cachemanager
e3/cache: import os, closes #1566
Update installer to remove emesene from growl 2, change website links
Merge pull request #1567 from joshf/master

Update OSX installer
Revert script to remove growl 2 tickets
Merge pull request #1568 from joshf/master

Revert script to remove growl 2 tickets
qt4ui: Preferences implement Sound Tab
qt4ui: Implement Notification tab and fix translation of sound tab
qt4ui: Parcially implement general preferences tab
qt4ui: parcially implement MainWindow tab on preferences
qt4ui: Parcially implement Conversation tab in prefs
qt4ui: various fixes
qt4ui: implement slider ticks
qt4ui: implement language preferences ui
qt4ui: fix links in extension tab