A number of fixes to the stats collection in mgmt_system

Added shim for getting provider name
Implemented get_stats for mgmt_systems
Moved to using the mgmt_system get_stats() method
Moved do_stats_match() method to details page, which is more appropriate
Fixed bug in do_stats_match for Infra and expanded to handle more stats
Merge pull request #210 from psav/fix_infra_provider_wait

Fix infra provider wait