Add in new flat drawByFeet mode.
Fix issue with Entity serialization.
Make EntitySerialize not rotate Entities with 0.0 angle, to prevent visual issues with colourKeyed Entities.
Fix issues with SensorEdit vis.
Fix more panning issues.
Fix dragging issue in SensorEdit.
Fix more SensorEdit issues.
Add more tagedit functionality, a filter for Sensors.
Add a DontSave parameter to the Ents.
More saving stuff.
Fix issue with SoundManager weakref referring to None.
Fixed crash with deleting floors, made the 'root floor', layer 0, undeletable.
Fix some spacing issues with the button's in Entity Edit mode.
Merge branch 'master' of https://github.com/Spummy/ThisHackishMess