rebuild translation files only when needed
rebuild translation files only when needed

meegotouch_translations.prf believes that engineering English ts files are
always autogenerated, and consequentially always regenerates them because
the source files may change any time.

 * translations/translations.pro:
   Add explicit dependency on the file(s) containing logical IDs.

siraj/mcompositor,nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,nemomobile-graveyard/mcompositor,siraj/mcompositor,siraj/mcompositor,siraj/mcompositor