Trebuchet: CS translation

- added conversations folder message

Change-Id: Iaf4c4ed9a67831ecfe68ffe21769db51e4873d87
Trebuchet: IT translations

Change-Id: I8c1f09b77d69bb7ef92d46178ee864c95a4291f4
Merge "Trebuchet: CS translation" into cm-10.2
Merge remote-tracking branch 'upstream/cm-10.2' into HEAD