Visual Tweaks and Responsive Modals

Added color/dash indicators for binary AI success probability inputs.
Changed typeface across app to Roboto/Roboto Condensed

Implemented responsive modals (i.e., change with screen size) using
bootstrap-modal.css
Created placeholder modals.
Typeface Fixes

Fixed issue with Google Fonts not loading over HTTPS.
Examples

Added complete examples for each design
Removed password protection at shinyapps.io
Merge pull request #3 from nseewald1/beta

merge beta features into master branch