Remove Java leftovers

 * Remove junit support
 * Remove unused libraries
Merge pull request #93 from sortega/feature/leftovers

Remove Java leftovers
Move message classes into their own package and fix imports
Merge pull request #97 from edrevo/refactor

Refactor message classes
Add coinffeine-test module and a first acceptance test
Merge pull request #96 from sortega/test-module

Add coinffeine-test module and a first acceptance test
Fix eigenbug in ProtoRPC Message Gateway

A timeout of 3 seconds while receiving a message seems to be not enough
for the IC machine. Let’s increment it to 10 seconds.
Merge pull request #100 from apoloval/issue/98

Fix eigenbug in ProtoRPC Message Gateway