Added new developer_dashboard template, view, and route
Retrieved game list and display them in a list for developer dashboard
added preliminary action to buttons
Minor fixes, changed URL pathing in dev board template
added XHR POST requests for delete and disable in dev dashboard
Used dashboard.styl and new button.styl, changed structure to mimic the review view
removed unnused format parameter
Merge pull request #109 from CharlesChong/dev-dashboard(issue#99)

Developer Dashboard (issue#99)
Refactored button colour hover states into a mixin to reduce code duplication, and added an equivalent mixin for text colours (to be used in the review page)
Added buttons for view, edit, disable, and delete to review page, using Font Awesome icons and CSS tooltips
Updated dates.js to append 'ago' suffix to relative dates, per the mockups
Implemented new submitted date style, and enhanced date filter in helpers.js to support short month names
Display game icons inline, and updated game title style to match mockups
Implemented selecting status with drop-down, and updated loading logic to use the selected status
Removed table header and cleaned up CSS a bit
Tuned CSS, fixed error logging on status change failure
Added a 'nocache' option to nunjucks defer extension, which prevents requests from being cached when true, and use this for the review list to prevent inconsistencies when switching between status filters after changing the status of a game. This may not be the best approach, but it seems like the fastest and cleanest to me.
Hooked up disable and delete buttons to moderate endpoints, and abstracted status submission accordingly
Made spinners work with secondary (font-awesome) buttons
Moved reviewer dashboard CSS from review.styl into dashboard.styl (final step of rebase with curation dashboard stuff)