Move thread distributors to separate package.
Cleanup blink demo.
Update API index. Add object module doc and b3.
Add b3 rules doc.
Add thread distributors.
Fix port support. Add baudrate.
Fix comments.
Fix exception message.
Fix message handlers. Do we need to call this message handler?
Add LED matrix driver.
Add LED matrix driver.
Apply new message handler policy.
Add serialization.
Merge pull request #12 from d2rk/master

LED driver, serialization, docs, etc.