Update credentials plugin
Conflicts:
	war/pom.xml
Merge pull request #1104 from stephenc/stable

[FIXED JENKINS-21820] Update credentials plugin
[JENKINS-7866] - Fix failed tests displaying as Yellow on "History for Test Results" page.

The colours where added in a different order to the data, resulting in failed tests displying as yellow and skipped tests displaying as red.

(cherry picked from commit 7ef1d37730997a06386670c343782e55fe4c029f)