Update zh_TW.ts

Add translation for phrases related to FullTextSearch
Merge pull request #496 from wlhunag/patch-1

Update zh_TW.ts
Update zh_TW.ts

Correct translation
Merge pull request #497 from wlhunag/patch-1

Update zh_TW.ts
Mac-specific: Fix for retina display
Update lt_LT.ts
Merge pull request #500 from embar-/patch-1

Update lt_LT.ts
Add help system
Add help buttons to dialogs
Updated French translation

Signed-off-by: VirtualTam <virtualtam@flibidi.org>