adding conduit method to get all content units of specific type from a given repo
remove ApplicabilityReport plugin model
replacing find_applicable_units with a calculate_applicable_units according to the new design
incorporating minor fixes from the pull request review
incorporating minor fixes from the pull request review
adding test for get_repo_units in profiler conduit
Merge pull request #532 from pulp/skarmark-applicability-performance

platform changes for new calculate_applicable_units api, get_repo_units conduit method and unit tests