Bower wasn't being used anyways...
Add data for navigation in _data/
Remove navigation from layout, include it instead

Also adds CSS for the current page
Use absolute paths for CSS/images
Simplify nav data
Add include for nav.html
Remove styling for current tab page
Update navigation, re-add navigation to News page
Add section on Donating to homepage
Use consistent indentation
Add id's to sections, update donation FAQ
Add polls/ page
Add polls section to home, remove Home nav link
Update Gemfiles for github-pages
Add jekyll-redirect-from to _config.yml
Add style guide to develop/
Move Polls section under 'Stay involved'

Also adds /news link to the Stay invovled section as well
Update Gemfile{,.lock}
Turn off `safe` to use Jekyll plugins locally

Plugins that are being used:
- jekyll-redirect-from
- jekyll-mentions
Add redirects from polls/ and dev-wiki homepage