please read the full description :D

fixes:
1. stopped reusing ctx names
2. passing config information around only as long as necessary now
3. template inheritence works much better now (as in... at all)

new features:
1. asynchronous callback driven interface, allows for lazy loading of templates
2. on_not_found callback hook - a better mechanism will come soon
3. horrible task queue - might be replaced with an event emitter?