Add link to github pull request website in heading
Merge pull request #552 from reviewninja/feature/githublinks

Add link to github pull request website in heading
Fix statuses context
Add context to test cases
Merge pull request #554 from reviewninja/feature/context

Fix statuses context
Add new color for selection

This differentiates references (to issues) from selection.
Also don't hover entire row when hovering issue icon in the
margin of the diff and file browser.
Check for error when recieving primary email address
Modify Merge Pull Request button

Now using the combined status API to render this button
Merge pull request #555 from reviewninja/feature/merge-button-update

Feature/merge button update
Merge remote-tracking branch 'origin/master' into feature/searchbarlabel