Merge pull request #1 from limsim/register-subject-tests

Register subject tests
Added tests for 128 char reference limit.
Merge pull request #2 from limsim/register-subject-tests

Added tests for 128 char reference limit.
Merge branch 'master' of https://github.com/hawkware/callectiv-api-test
added basic test for getting subject
merged changes and resolved conflicts