Merge pull request #18 from DavidGinzberg/gh-pages

Merging latest content with Master
Implemented checker and more tests

Separated tests out into modules (Integration and Unit testing modules
so far). Finished implementing first version of solution checker. All
tests pass now. fixes #2, fixes #7
Merge pull request #19 from DavidGinzberg/Solver-Implement

Solver implement