moved utility files to include directory
moved files
start join tree interface
remove old graph class
added gtest library
deleted old graph.cpp
added test.py
changed to Catch c++ unit testing library. organized files into src, bin, and test folders
Merge branch 'kcking-dev' of cloud3.csail.mit.edu:~/urop/cilk-graph-coloring/ into kcking-dev
dont ignore test.py
working on test framework, Make with cilk close to working on mac