new makefiles
system and body headers
minor edits to example makefile, added a new test makefile
adding *~ to gitignore
pulling in new files from master branch
body class
adding test makefiles
grabbing classes and body test from master
simple test
cleaning up, refining makefile
body-test inclusion
System class - not working yet
working, simplified Makefile
updated readme, deleted mock files
included compiled files in order to make the project structure clearer, updated readme accordingly
resolving merge conflicts with master branch
rewrote make file to allow for separate unit tests
updated readme with new makefile instructions, deleted old Makefile
physics engine
added opengl tutorials to README