Fix #46 - misc_turretG2 entities now show up.

misc_model_static entities were fixed in f19b315.

This commit effectively reverts the change made by eezstreet in e99630ec.
If assertions do appear again with misc_model_breakable entities then I
suggest looking for a different fix, or assessing whether the assertion
that was triggered before is necessary.
Merge branch 'master' of github.com:JKGDevs/JediKnightGalaxies