Removed adapter to fetch object values with dots in the key

This is better done with a nested data structure rather than inventing a
string-based lookup.
Added String object polyfills
Added comment with Salt-specific color scheme values
Added x-modal element from the x-tags registry
Added configuration file for the r.js optimizer
Don't need comma-first notation
Moved custom into self-contained directories
Added sections for custom tags; minor consistency fixes
Renamed main.js -> init.js
Minor formatting cleanup
Added function to dynamically filter docs
Added X-Tags mixin to grab modal via attribute
Added basic routing and default template
Added default landing page to bootstrap the app
Added note about browser requirements
Force IE not to drop into compat mode; use Chrome Frame if available
Renamed index to exec
Added a router object to allow for adding routes from anywhere
Removed debugging output
Customized local copy of rivets for AMD