Raiden PoC 5 - Alternative Channels

This is our first PoC release on our way towards the Raiden MVP for 2017!

It's a big one! It contains 28 PRs from 7 different contributors. It's really nice to also see some external contributors trying their hand on raiden.

Here is the breakdown of what has been implemented.

• Made jsonrpc hex encoding compatible with newer versions of geth:
  • #291
  • #343
• Separated development from production dependencies - #296
• Channels can now be reopened after closing - #297
• Unique UDP socket port numbers for the tests - #315
• Make raiden work for MacOSX - #318
• The raiden node will now monitor its channels and automatically dispute if there is a discrepancy - #327
• The client which deploys the registry contract will now keep quiet - #331
• Fix timing error in the networking protocol of raiden - #332
• Channels now emit an event when they are deleted - #336
• Raiden readme changes - #338
• Fixed RLP dependency error - #339
• Fixed Pipy upstream URL location - #342
• Fixed Pipy requirements - #349
• We now reuse TCP ports instead of opening new ones for each new request - #350
• Raiden can now also work with solc versions >= 0.4.9 - #351
• The Raiden node now handles messages from outdated partners and messages sent to non-existing channels in a more graceful way - #352
• General Code refactoring/additions:
  • #295
  • #304
  • #310
  • #313
  • #320
  • #328
  • #329
  • #330
  • #333
  • #345
  • #346