i2ptunnel: Prep for keepalive
First part of keepalive changes.
- Add utilities to find end-of-message
- Move GunzipOutputStream to new util package
- Add end-of-message checking to GunzipOutputStream
- All new utilities unused in this checkin
I2P Address: [http://git.idk.i2p]
First part of keepalive changes.
Base32 Address: [http://7qeve4v2chmjdqlwpa3vl7aojf3nodbku7vepnjwrsxljzqipz6a.b32.i2p] Onion Address: [http://47ggr2fa3vnwfyhvgskzdmr3i32eijwymxohtxsls45dulmriwxszjad.onion]