Initial implementation of JIRA support.
Update deployit-udm-plugins/utility-plugins/change-mgmt-plugin/README.md
Update deployit-udm-plugins/utility-plugins/change-mgmt-plugin/README.md
Fixed small niggles.
Merge pull request #18 from mpvvliet/change-mgmt-jira

Implemented support for querying / updating tickets in JIRA.