add basic list of examples to docs
multiple queries/handlers, unregister and conditional loading covered in docs. upgrade to grunt 0.4.0
further documentation improvements

Conditional loading covered in detail. Improved introduction to cover
brief scenario. Some general cleanup
add quickstart, explain addListener requirement, spellcheck
improve examples - show example code, better UI for visualising state
break up example JS into logical chunks
commit deletion of old files
improve examples UI

- merge example styles into enquire.css
- make UI more intuitive and visual
- examples stylised as rest of site
- some css cleanup, remove redundant vars