Adds a configruation file option that can be overridden by command-line args

Note that this borrows very heavily from http://stackoverflow.com/a/5826167
Only a small portion of this is my own code
Improved path handing for config file
git ignore command-line flags file
Merge branch 'config' of https://github.com/hamiltont/FrameworkBenchmarks into hamiltont-config

Conflicts:
	.gitignore