document some variables time units
report gametime and optional time till suddendeath or timelimit additional to servertim in /time command
Merge branch 'refactor/cleanup' into coins
fixing s_mute cvars not muting environment sounds (via loops) with the dma backend in effect
add s_mute support for background tracks like they get used for the start menu/intro
Merge pull request #169 from t4im/coins
Kill some warnings (reported by clang).
Adjust flamer so that maximum power is at ⅙ of full range.
Adjust how projectile power loss is handled. (No changes to effect.)
In-flight damage from missiles; enabled for flamer.

Damage is applied to entities within the splash radius for each step of the
projectile's flight.

Flamer projectile in-flight damage is set to 1.
Collision and splash damage are reduced by one unit each to compensate.

The player firing the flamer won't get hurt except by splash from a
collision; he's considered shielded.