Version 0.6

- [x] Improve the Twig syntax for calling aliases (#61)
- [x] Improve template loading (#39, #60)
- [x] ~~Actually get the twig:compile working (#41)~~ `php artisan optimize` now does this
- [x] Twig engine should extend CompilerEngine 
- [x] Make better use of the IoC (#56, #119)
- [x] Improve Laravel composer / creator support (#59, #66)
- [ ] Improve tests & coverage
- [x] Review getAttributes Template method (#126)
- [ ] ~~Improved package support (#74)~~ to be confirmed
- [x] Render string templates (#94)
- [x] Decide which functions / filters are escaped by Laravel extensions (#68)
- [x] Improve error handling (#115)