Auto-popout create issue form when user selects a line

When the user selects a line number we will auto-popout this form
and highlight it yellow for a few seconds
Merge pull request #519 from reviewninja/feature/popout-issue-form

Auto-popout create issue form when user selects a line
Merge branch 'master' into feature/issueref

Conflicts:
	src/client/controller/sidebar.js
	src/client/templates/pull/sidebar.html