Added Proton Rockets card to Rebels

Added the new Proton Rockets upgrade card (from Rebel Aces) to the Rebel
catalogue.
Added Gemmer Sojan pilot

Added new A-Wing pilot from Rebel Aces.
Added Proton Rockets card to Imperials

Added new Proton Rockets card (from Rebel Aces) to the Imperial
catalogue.
Removed daggers from Rebel Wave 4 releases

Removed the dagger symbols (†) from the Wave 4 releases in the Rebel
catalogue.
Removed daggers from Imperial Wave 4 releases

Removed the dagger symbols (†) from the Wave 4 releases in the Imperial
catalogue.