Several utilities for finding interesting metrics
Move executables into bin
Add Rakefile to run tests
Ignore vim swap files
Read a git log into a structure for analysis
Extract commit parsing into the commit class
Use the commit for parsing commits from the log
WIP
Add 'git-analysis/' from commit 'fc7c3c03861eec6ff8f858fc22ec57bbf0f5b60d'

git-subtree-dir: git-analysis
git-subtree-mainline: c55fe4f5be4cc3a287e0cf174cb19b13df4a5cce
git-subtree-split: fc7c3c03861eec6ff8f858fc22ec57bbf0f5b60d