[BACKLOG-398] - adding authorization checks to all endpoints in PluginManagerResource.  Creating UnauthorizedException that extends WebApplicationException which appears to be the "correct" way of handling authorization issues with jax-rs
[BACKLOG-197] Refactor and docs for /userrolelist/extraRoles
Merge pull request #1782 from bmorrise/oemdocdev

[BACKLOG-197] Refactor and docs for /userrolelist/extraRoles
[BACKLOG-292] - copying getExecutableTypes from RepositoryResource to SystemResource.  The original endpoint stays but will call the new method.
Merge pull request #1783 from kurtwalker/BACKLOG-292

[BACKLOG-292] - copying getExecutableTypes from RepositoryResource to Sy...
Merge pull request #1781 from kurtwalker/BACKLOG-398

[BACKLOG-398] - adding authorization checks to all endpoints in PluginMa...