balance.gmk:

+ buff afterburn
+ fix blade ammo consumption hitch (image: http://i.imgur.com/XAGpq.png) and ammo stutter
+ give mine splash a larger radius exclusively when interacting with other projectiles (mines can destroy bubbles more easily)
+ fix mines vs buildings radius
+ lower intel charge rate while moving
+ subtract damage taken from healing remaining while eating sandwich
+ keep intel from charging while heavy is eating
+ make spy flicker some frames longer
+ make spy revolver never draw over stabbing animation
+ reduce heavy's ammo pool
+ fix a rare bug involving rifles, setup gates, and bullet walls