rftg: update to 0.9.5.

0.9.5

This release includes the cards from Xeno Invasion (no invasion
game), the possibility to play Rebel vs Imperium without The
Gathering Storm, several new campaigns and some other fixes.

Thanks to Marsux for implementing Xeno Invasion, and bgg user
entranced for providing the campaigns.

0.9.4q

Fix crash when campaign key was not present in preferences file.

0.9.4p

This version fixes the annoying Galactic Developers bug, and also
includes the good stuff from the otherwise faulty 0.8.1n version.

(wiz)