Approaching stability.
- Passthrough request handlers for static artifacts: https://github.com/piercefreeman/grooveproxy/pull/29
- Add disk cache: https://github.com/piercefreeman/grooveproxy/pull/30
- Add Aggressive-GET requests: https://github.com/piercefreeman/grooveproxy/pull/31
- Add Tape IDs: https://github.com/piercefreeman/grooveproxy/pull/33