Try harder when looking for icon and don't cache weak results

- closes #11 #12

Signed-off-by: Jakub Filak <jfilak@redhat.com>
Use $ARGS variable for arguments in 'make run'

Signed-off-by: Jakub Filak <jfilak@redhat.com>
Make gen-version less stupid

Signed-off-by: Jakub Filak <jfilak@redhat.com>