Severely improved performance, removed gravity, working on bounce
function
Renamed the forces class to a better name tiny work on collisions
Worked more on collision stuff
Think I got good elastic collisions working (Probably some bugs)
Fixed most of collision bugs
Fixed MAJOR bug that was screwing the whole gravity thing

all caused by one mistaken character
Now assumes constant acceleration between ticks instead of none
Fixed occurrences where movement of the bodies was screwed up by divide
by zero problems
Merge branch 'collisiondev-nogravity' into physics-dev

Conflicts:
	src/com/labprogramming/gravity/Forces.java
	
Made small steps to reconciling collision and gravity more will come
soon
CHECK FOR TYPOS!! Added new class utility to have methods which include
long equations or other math stuff and added a class which returns the
two solutions for the collision finding equation
Made use new physics for motion, working on redoing step to work better,
NOT DONE
marked fixed bugs
moved driving force behind moving bodies to Body

part 1
louis made me
moved driving force behind moving bodies to Body

Part 2
louis made me
moved driving force behind moving bodies to Body

Part 3 (final i hope)
louis made me
partially improved loop

still need to do collisions
Fixed problems from last commit
Increased Gravitational constant so gravity is more noticeable
Made VectorUtil work better with vectors as an angle and magnitude
Fixed not dividing the force by mass when calculating acceleration