Prevent crashes when r_deferredShading > 0
"groupname" to "group" (after it was intially "team")
Fix 4f7d857a7170a2580ce0a0c69bed7a72d73267c0. Shotgun works as expected now.

In the bad commit, Q_crandom() allowed negative values into the sqrt. This led to bad things happening (like not all the shotgun shots would hit where expected.)
introduce flow_limited, which will only propagate the firing event a configured time until removing itself from the world and intentionally breaking the entity chain
reorder header entries to group entity spawn functions of same type again
Merge remote-tracking branch 'upstream/master' into entities
better define what it means to be an active and/or operative (previously powered) entity
let all sensor toggle their status while still propagating for old trigger-classnames for backwardcompatiblity