add compress code, fix bug
add proto buffer
fix bug
add code
fix bug for new protocol
Merge branch '0.3.x' of ssh://pomelo.com:29418/pomelo into 0.3.x
Merge changes I464c691e,I4c83f994,Ided2e8a3,I2ef337bc,I38be3d67,I77d5071f into 0.3.x

* changes:
  Merge branch '0.3.x' of ssh://pomelo.com:29418/pomelo into 0.3.x
  fix bug for new protocol
  add code
  fix bug
  add proto buffer
  add compress code, fix bug