Merge pull request #1850 from krivera-pentaho/oemdoc-dev

[BACKLOG-194] -- added many junit tests for FileResource REST methods
[BACKLOG-197] Added additional documentation for User Roles endpoints
Merge pull request #1853 from brendan-lynch/oemdoc-dev

[BACKLOG-197] Added additional documentation for User Roles endpoints
[BACKLOG-195] OEM SchedulerResource refactoring for:

/scheduler/jobState (SchedulerResource.getJobState) BACKLOG-452
/scheduler/pauseJob (SchedulerResource.pauseJob) BACKLOG-453
/scheduler/resumeJob (SchedulerResource.resumeJob) BACKLOG-454
/scheduler/removeJob (SchedulerResource.removeJob) BACKLOG-455
/scheduler/jobinfo (SchedulerResource.getJob) BACKLOG-456
/scheduler/jobinfotest (SchedulerResource.getJobInfo) BACKLOG-457
Merge pull request #1855 from e-cuellar/oemdoc

[BACKLOG-195] OEM SchedulerResource refactoring for:
[BACKLOG-194] -- Final set of FileResource junit tests