Use waypoints to animate global nav

* Resolve merge style conflicts
* Refactor JS with data-attributes
* Make comments after PR review
Improve visual design of documentation navigation

* Remove `border` from documentation navigation
* Add `margin` below `global-nav` so it's modular and in `content-container`
* Add margin to hero content in lieu of margin from global nav

https://trello.com/c/KNHdE47Q
Refactor with container names
Make sticky docs navigation

* Remove `border` from documentation navigation
* Add `margin` below `global-nav` so it's modular and in `content-container`
* Add margin to hero content in lieu of margin from global nav
* Add waypoints sticky to project
* Rename global nav JS elements for better clarity
* Use Waypoints to properly display docs navigation

https://trello.com/c/KNHdE47Q
Refactor JS syntax and var
Fix merge conf
Remove Fira font files

* Remove `font/` directory with Fira fonts
* Remove corresponding CSS references to Fira fonts

https://trello.com/c/abHQcg6W
Resolve Safari SVG rendering

* Remove old Middleman brand assets
* Move `middleman-logo.svg` outside of `logos/`
* Modify box-shadow value of global nav style

https://trello.com/c/YdBlvKwh
Create community page and basic layout

* Add responsiveness, text styling, first pass layout
* Scope border-bottom on h1's to .main class
* Clean up references to global nav partial
* replace border bottoms with HRs, WIP
* Refactor class naming system
* Style hr tags
* Separate styling for community preview on landing page from community page
* Update responsive styling for forum section of community page
* Style logo section
* Add logo section as a partial
* Change `container` class to `wrap-container`

https://trello.com/c/lgtX08mv