Merge pull request #5 from nshelly/master

Merge SNAPR as submodule.
Merge pull request #6 from nshelly/master

Integrated TNEAGraphs
Merge pull request #7 from nshelly/master

Added pointer dereferencing for file input/output in Python.
merged Snapworld changes into swig-sw, renamed swig -> swig-r, added a number of short test programs
Added brew pro-tip for swig in README
updated Makefiles for swig-sw and swig-r
Merge branch 'master' of github.com:snap-stanford/snap-python
Merged with new swig format.
Updated swig paths.
Updated Makefile paths.