fix transifex desktop icon field

Change-Id: I619365c9a731fa92fa7d0c06c37e558a61a1f3ff
add hicolor icons

tower: https://tower.im/projects/8f19f0bf0e754f0b82ef2c24bc230973/todos/9013215438234694b27008a199825803/

Change-Id: Idfb3685a476e7e62b9d1e102884db9dea8f73c64
add the lost translations of action group in desktop

Change-Id: I4aa372c9f5c45155ca1aae62720627e7b5cf227c
Merge branch 'release/2014.2' into develop

Change-Id: Ia5cb5a18c69b013c28dc9873fc30cff99ee25f97