add crypto tests, fix a handful of panic bugs
refactor signatures slightly, restore test suite to full testing
fix a slew of quorum bugs
Merge pull request #105 from DavidVorick/serverTests

Tests
fix bootstrap ID
add SendAsyncMessage to MessageRouter
send State messages asynchronously
add index field to gob
add SendAsyncMessage to ZeroNetwork
Merge pull request #108 from lukechampine/rpc

networking fixes to State