Merge pull request #11765 from davidflanagan/bug908941

Bug 908941: add a latin version of the Serbian auto-correct dictionary r=RudyLu(cherry picked from commit 0bab727b8f537ab6a64fdeb6ad8993d8df0d1041)

Conflicts:

	dictionaries/Makefile
Merge pull request #11801 from davidflanagan/bug908941-v1-train

Bug908941 v1 train