WiP hyperlinking of message from main log in InputStep.
Merge branch 'master' into InputStep-hyperlink

Conflicts:
	basic-steps/src/main/java/org/jenkinsci/plugins/workflow/steps/input/InputStep.java
CPS 0.5 released to avoid snapshot dependencies
Fixed clicking the Proceed button.
Can no longer reproduce 400 response; not sure what it was before.
Hack to preserve console annotations.
Fixed encoding.
More helpful documentation of hack.
More readable formatting.
Merge pull request #3 from jenkinsci/InputStep-hyperlink

Hyperlinking of message from main log in InputStep
Merge branch 'master' into BuildStep-Job
Updated to 1.577 and junit-plugin split.