.gitignore metadata/md5-cache which eix-sync may generate

Signed-off-by: Gregory M. Tuner <gmt@be-evil.net>
app-emulation/vmware-workstation: add gnome-base/libgtop-compat compatibility hack to prevent conflicts with newer libgtop

Signed-off-by: Gregory M. Tuner <gmt@be-evil.net>