Beta hotfix, 1.2.7

Quick update -- some of the fine folks in the LANCER discord tipped me off to some issues with the beta branch, and they've been fixed. Specifically: 

• Statblock output is now formatted correctly
• If you had the old version of UNCLE equipped, it'll now show up as a missing system and you can re-equip it as a weapon mod and replace that system slot
• The mech printable warning dialog and the statblock no longer incorrectly think you have the Improved Armament flex mount when you really don't