Wrote tests for basic cannonball behavior. Set up inheritance structure
for the equations of motion and began writing runge-kutta code. Waiting on
clearance to include the Numpy module into the environment before
proceeding.
Wrote runge-kutta code for Projectile class. Energy conservation holds for
costant force field (gravity). Boundary test still fails.
Integrated new projectile object structure with existing code. Still need
to test out potential bugs.
Merge pull request #2 from pcsouza/trajectory_refactor

Trajectory refactor
Update trajectory.py
Further updating of trajectory.py
Fixing some stuff i messed up.
almost works. some slight bugs with trajectory calculation and/or termination
fixed it almost completely!!!
Works almost completely! fixed tracing of everything.
again fixing some stuff i messed up
Finally got most stuff working smoothly. Still have to work on automatic targeting.
Holy crap everything is working super well. working on targeting next.
Work on the targeting system.
Merge branch 'master' of https://github.com/gillett-hernandez/SandCastleDefense

Conflicts:
	python/engines/trajectory.py