Performance improvement: disable OptimizeOnCommit by default
Updated solr binaries to 4.6.1
Removed accidentally comitted runtime files, adapted .gitignore accordingly
New build of custom ezfind solr requesthandler, adapted version number in build file
Added option for softcommits, with by default hard commits every 15 seconds in solrconfig.xml for any pending doc additions without explicit commit
Properly ignore run time directory if present