Added LOC data parsing to DB rebuild and GitLogParser
Ruby script to find LOC entire git log and cloc utility
Substituted json package for maven dependency jar
Fixed json maven jar import
Refactored the LOC stuff

* Made it a separate Java class so that we don't require LOC to parse git logs (maybe the next study won't need that)
* The separate class runs an update on GitLogFiles after it's been indexed
* Added a DBVerify
* Added some comments here and there
* Tightened up some of the code
* Formatted using our project's conventions using CTRL+SHIFT+F
* Changed the property to history.churn.loc_at_rev

This fixes #36. Good work, Brian.