Worked on 2d OBB Collision

It isn't completely done, and it still needs a ton of bugfixing, but I'm
tired and mrrh. Also, I accidentally deleted GravEntity, because, yknow,
who needs that thing that a ton of stuff depends on. So that's back.
Debugging EntityCollide

It doesn't work yet. What a shocker. Nevertheless, it looks promising.

Run CollisionsTest to see progress.
Add helper getTex function
Test works now!
Move projectLineAlongSurface
Format
Fix typo
Added Render to autosize to texture

And no, collisions still don't work.
Halved values

Basically, imagine you are comparing two circles, and you are comparing
one's radius to the other's diameter. That's what I was doing.
Patching up Kenyons code
I think Bbs stay with rot
Move lerp to Maths
Add rotator because of no GL11 matrix things

Needs matching test, will do when not coding on phone
Testing Kenzie's GLRotator thing

It isn't working.
Require 3.0 so we can use glRotate
Boom.
Add note to DR
New way to rotate
Remove unneeded imports
Bleh, glRotate don't work.