Merge pull request #908 from matthiasseidemann/master

[OPENENGSB-3793] Update useprojects domain model
[OPENENGSB-3790] Improve multipleValueSeparator used in UserProjects
LDAP connector
[OPENENGSB-3796] Create a JIRA authentication connector
[OPENENGSB-3799] Add JIRA authentication connector module to the parent
[OPENENGSB-3800] Integrate JIRA authentication connector into the
assembly
[OPENENGSB-3801] OpenEngSBWebSession should use the Password defined by
the JIRA authenticator
[OPENENGSB-3802] Create a JIRA userprojects connector
[OPENENGSB-3805] Add JIRA userprojects connector module to the parent
[OPENENGSB-3806] Integrate JIRA userprojects connector into the assembly