Remove 'Applications' category from desktop file (patch by Dmitry E. Oboukhov)
Do not install anything in $PREFIX/share/app-install (patch by Dmitry E. Oboukhov)

This is a private area of app-install application (Software Center),
and it is impolite to install files into places we don't own.

Not to mention it causes installation conflicts in Debian/Ubuntu.

See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=689205
Preconfigure goldendict-wordnet path (patch by Dmitry E. Oboukhov)
Automatically add installed opendict dictionaries (/usr/share/opendict)