last commit before learning to use git
changed week 02_01 file name
substituted version of code for week 02_01
added 02_03_gravity.
working with random x speed and bouncing of sides
02_03 initial velocity now set by mouse dislocation - feelin of throwing the ball
removed files from repo
minor adjustments 02_03
added file 02_04
02_04 3D bouncing ball working with wireframe around it and ofEasyCam functionality