Library
=================================
- memcached
- mysql
- sha1 / md5 / meow
- cache
- json_encode / json_decode
- curl
- random
- pseudorandom


Bugs
=================================
- shell_escape()
- we crash on illegal paths
- you should not be able to invoke() outside of DOCUMENT_ROOT
- invoke path should not be the same as cwd (cwd should be path of entry point file)


Framework
=================================
- DTree<
- File Upload
- Proxy mode
- WebSockets
- Persistent code / Cron / Tick?
- Fork
- Multithreading
- Optionally store compiled units alongside source


Nice to Have
=================================
- Solr
- XML components?