Fixes #6446 - Forbidding non-json POST/PUT requests in v2

fixes #4155 - enable host/CR (dis)association via api

Fixes #6532 - permission related api extensions

- usergroups#show lists associated roles
 - listing available resource types
 - filters#show lists associated roles
 - filters#index lists associated roles and permissions and orders the results
 - pagination in permissions#index...

fixes #4250 - API v2 - add compute profiles

fixes #4204 - add config groups feature - assign multiple config groups to a host or hostgroup

fixes #1809 - foreman realm integration

fixes #4457 - Session fixation, new session IDs are not generated on login (CVE-2014-0090)

fixes #4581 Implement available_networks API for VMware

fixes #4201 - update operating system by label, use description or fallname otherwise

fixes #812 - new permissions model, user group role and nest support, role filters for better granularity

• Daniel Lobato <elobatocs@gmail.com>
• Joseph Magen <jmagen@redhat.com>
• Tom McKay <thomasmckay@redhat.com>
• Greg Sutcliffe <gsutclif@redhat.com>...