Tidying up code and adding javadoc etc
Output filename in exception reports so warc files can be reviewed
Remove stale code
Re-introduce local buffer for testing
Revert "Re-introduce local buffer for testing"

This reverts commit 782d608fc34155e6cad5f65de0cf265e321ed342.
Update nanite-hadoop pom file to exclude old version of Guava for certain
versions of hadoop
Merge pull request #14 from willp-bl/master

Misc clean ups