Use common rules for build and install documentation.
Copy translations to a new directory layout.
Use gtk-qt-engine as the name of the translation catalog.
Use common rules for build and install translations.
Added translation of .desktop files.
Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit f87ecf91e7)
Slávek Banko
Michele Calgaro
Timothy Pearson
tpearson