* Got basic tcp connection working
* Got passing itest for open tcp connection
* Got most of protocol working. still need to send offer correctly
* Got offer from peer over tcp connectrion
* Got single squeak download working on tcp connection
* Remove rpc peer client
* Remove old rpc clients
* Remove old squeak client modules
* Got sharesqueaks peer message working
* Remove peer rpc server
* Remove server rpc fixtures
* Remove old itests
* Remove old sync modules
* Run worker background task to keep peers synced
* Add peer connection worker
* Add test for disconnect peer
* Remove old itest util
* Delete old peer rpc client helpers.
* Handle insert duplicate received offer
* Use more specific exception handling for duplicate offer insert
* Rename secret_key
* More work to convert to using PTLC
* Updated most code for PTLC
* More work to use ptlc with secret key
* Got itest passing
* Remove unused import
* Use version 0.5.0 of squeaklib
* Added simple unit test for squeak controller
* Use modular addition subtraction for secret key nonce tweak
* Move util to core folder
* Store secret key as hex in database
* Store nonce as hex in db
