Add initial styling and javascript for scroll-up
Add html for scroll-up button
Make up button color $splash
Add href to scroll-up for cursor -> pointer on hover
Improve styling

* Center up text
* Move closer to scroll bar (almost looks native)
Make href empty string
Remove surround <a> tag
Add cursor:pointer to .scroll-up
Fix turbolinks bug

* Turns out it was breaking because of turbolinks
* Turbolinks doesn't trigger page ready, just page load
* So on page load call my ready function
change 'up' to upward arrow
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Merge pull request #1 from samcal/scroll-up

Add button to scroll to the top in all views with application layout.