Vote notify email formatting

- Added Android meta tag for full screen app on Android

- Integrated Premailer for CSS email processing

- Added Mailer condition to trap no new votes condition

- Added Slim templates to the project

- Set up voter_mailer/vote_notification view for testing email CSS in browswer

- Fully tested new HTML email in mail client

- Converted Landing page to Slim

- Converted Application template to Slim

- CoffeeScript Deubugging finally in place and working (dev env only)

- Integrated existing site look and feel into HTML email

- Cleaned up cross CSS compatibility bugs