Adding jira issues

Had to proxy jira rest API due to cross origin policy issues. You can see the page with jira issues on [rawgithub](http://rawgithub.com/rodms10/mozilla-cordova.github.io/master/index.html). Jira rest api is very slow though :(

Would be nice to move the site to the paas solution Wenzel mentioned. We could start by combining all proxies.