Add in .travis.yml configuration
Add in travis-ci status to the README
Actually correct travisci button?
More button formatting
Ha, and then actually link to the travis ci page and not just the png
Be a little nicer, don't need to double-test on jdk7
WIP on making an example with some real-life data
Add an example that uses Cosmos' groupBy functionality to compute the top-ten
most frequent values in a given column for the city of Chicago's building
permits.

- Make the return on groupBy be CloseableIterable instead of Iterable
- Auto-close all CloseableIterables when the delegate is exhausted
Format the README with some reasonable line-wraps
Default to loading the entire data set
Merge branch 'master' into accumulo-1.4

Conflicts:
	core/src/main/java/cosmos/SortingMetadata.java
	core/src/main/java/cosmos/results/CloseableIterable.java
Clean up the classifier junk again