Added support for Data Import Handler
Added support for Data Import Handler

Added ability for CFSolrLib to handle Data Import Handler (DIH) requests. Also, added ability to retrieve the information (via the THIS scope: username, password, isAccessAuthenticated, dataImportRequestHandler) one would need to hit the Solr server directly (say, via CFHTTP), if the programmer didn't want to go through CFSolrLib for DIH calls.
iotashan/cfsolrlib,iotashan/cfsolrlib,iotashan/cfsolrlib