Player Balance

Grenadier:
- Reduce shotgun range.
Medic:
- Increased pistol range.
- Decreased heal time from every .5 seconds to every 1 second
Sniper:
- Increased cooldown between shots from 1 to 2 seconds
Tank:
- Increased minigun accuracy
Merge branch 'master' of https://github.com/uudkdevs2013/TheSonOfBSF