Fix preview modal with long blocks of copy
Fix nav button styling
Fix button styling
Tweaking nav button layout
Remove gist.io.js
Refactor left sidebar and nav items, stub new gist route and form
Create new gists when form on /new is submitted
Pull pipeline method out of Gist class into Roughdraft module, enable previewing of new Drafts
Fix Close Preview button styling
Refactor Gist create behavior, redirect to /edit on save
Merge branch 'new-draft' into 2.0