-Refactored the associations code into a set of objects that are configured by the entities
-Added support for associations that can be done in a single rpc
-hostgroup to host and group to user associations working
-Restructed sampledata so that the file is matched automatically by the RPC method name
-The new ipa_cmd/sampledata scheme insists on there being sample data for any commands or the ipa_command fails.
-Added sampledata files for all the calls we make
-renamed several of the sampledata files to match their rpc calls
-Started a pattern of refactoring where all the forms for the entity fall under a single object
