Merge pull request #48 from ngokevin/mozmaster

don't do create thread if thread exists (bug 970170)
Commit from Mozilla Verbatim by user civas.: 72 of 72 strings translated (0 fuzzy).
Update sr-Latn with sr-Cyrl converted running icu4c script
Merge pull request #49 from flodolo/srlatn

Bug 970938 - Update sr-Latn with sr-Cyrl converted running icu4c script
L10n Extract/compile script. Today's lucky number is 3403.
ability to create attachments (bug 958677)
list attachments on notes