Improve how project boxes are shown in home page
Keep definition of `#large` variable in view
🍒
Change medium-screen breakpoint full width of 1000px
Remove right padding of large project boxes
Consider cover as a new row in project-box layout
Move project box media query to the bottom of the file

This way we ensure every selector has preference over the above.
Prevent image cropping in project boxes on small screens
Fix project box for medium sized screens after changes on small
Use ugly slim in development env
Improvements in footer on small screens
Fix bug in transition of project box on Firefox
Merge pull request #429 from neighborly/im-responsive-project-boxes

Improve appearence of project boxes in "medium" screens