[BACKLOG-197] -- added unit tests for SessionResource.
Merge pull request #1882 from krivera-pentaho/oemdoc-dev

[BACKLOG-197] -- added unit tests for SessionResource.
[BACKLOG-197] -- added unit tests for SystemUsersResource
Merge pull request #1883 from krivera-pentaho/oemdoc-dev

[BACKLOG-197] -- added unit tests for SystemUsersResource
Merge pull request #1885 from bmorrise/oemdocdev

[BACKLOG-195] Merge from oemdoc and minor code fixes