Update to Rundeck API java client 9.1, add authtoken support
Cosmetic: Update Rundeck icons to Rundeck 2.0 logo
Cosmetic change: "RunDeck" corrected to "Rundeck"
Fix links to Rundeck user manual
Update to rundeck client 9.2
Persist original jobIdentifier user-input instead of discovered Job UUID

* look up correct job UUID if necessary when triggering/linking the job
Merge pull request #3 from gschueler/auth-token-support

Update Rundeck API client library, support auth-token authentication, fix tomcat authentication, update some cosmetics