Alpha release of new version

Not everything for this new release is finished. The tool has been rearchitected to be easier to use within existing code bases. Many things have changed. Here are a few of them:

1. A command-line tool called flit with subcommands
2. Storage is into an SQLite database rather than Postgres (for simplicity and ease of installation)
3. A configuration file where you can specify your ground-truth compilation and your developer compilation.
   Some of the values in this configuration file are not yet implemented to be used.
4. An included makefile to help you specify how to build your source files with the tests
5. Turn FLiT into a shared library to be linked