Updated site to reflect new repo location.
Refactored SolrCommitter to use latest committer version features.
Upgraded Solr version and improved Javadoc.
Deleting of documents in a batch is now done by parent class.
Fixed test problem.
Removed unused imports.
Javadoc update.
Fixed invalid annotation.
Website update.  Upgrade solr libs to 4.7.
Site tweaks.
Prepare for release.