Merge pull request #1 from boxuk/master

More robust - fix 3 issues
Merge branch 'master' of github.com:jenkinsci/jslint-jenkins-plugin
[maven-release-plugin] prepare release jslint-0.7.4
Maven Y U keep breaking my files and then failing to release?
Maven is confusing me
Fixing syntax in pom
[maven-release-plugin] prepare release jslint-0.7.4
[maven-release-plugin] prepare for next development iteration
Removing the groupId as per https://wiki.jenkins-ci.org/display/JENKINS/Hosting+Plugins
[maven-release-plugin] prepare release jslint-0.7.5
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release jslint-0.7.6
[maven-release-plugin] prepare for next development iteration