Add "built on cloudbees" button and link
added "Powered by cloudbees" button
added build status badge
extend .gitignore to common build and IDE files
put cloudbees badge in adequate <div>
Add jetty for dev environment
added myself as contributor
Merge pull request #1 from ndeloof/master

added "powered by cloudbees" badge
Merge remote-tracking branch 'ybonnel/jettyForDev'