Adds random issue button resolves #230
Updated to run only on click
Filtered to only comments
Merge branch 'master' of github.com:joomla/jissues into randomIssue

Conflicts:
	etc/routes.json
	src/App/Tracker/Model/IssueModel.php
Updated
Merge branch 'master' of github.com:joomla/jissues into randomIssue
Update code in random button
CS and Issue Model update
Merge pull request #237 from dbhurley/randomIssue

Adds random issue button resolves #230