Genericify this shit.

Signed-off-by: Mloc-Argent <colmohici@gmail.com>
Expansion of every "icon = ''" path.

Supposed to help compilation times.  Who knows.

Signed-off-by: Mloc-Argent <colmohici@gmail.com>
Merge pull request #3631 from Mloc/pathexpand

Absolutized all icon paths.