Merge pull request #1 from rcook/master

Added Ant build files
Merge pull request #2 from rcook/master

Add Ivy configuration to download dependencies for project on demand
Update README.md
Update README.md
Add _version_ field
Clean up code / warnings
Performance improvement - get authors less frequently
Improve batch size / logging
Minor improvements to loading time of git repos
Performance improvement - Remove massive commits from index, and simplify the logic for building a file list
Minor indexing performance improvement - halve size of index
Handle some error scenarios - another perf improvement
Don't create DiffFormatter objects as often
Add more facet options
Update README.md
Add sample quartz/log4j files
Fix errors with Quartz demo
Fix log4j settings, and helloworld of quartz
Update README.md
Update README.md