Added pull request comments per contributor factory
Merge remote-tracking branch 'upstream/master'
Added route for client-side for viewing pull request comments issues
corrected syntax err
Added scripts for pull request comments factory + controller
fixed syntax errors
Added server route logic for pull request comments per contributor
Added partial for displaying pull request comments per contributor
Merge pull request #67 from mk200789/master

Completed task: "Comments for Pull Requests Per Contributor"