* Modified server to change worker size
* Modified msgpack to be developement dependency to avoid platform specific problems
  User should require the specified messagepack implementation for jruby or ruby
+ Added supervision of queue
* Added logger for karibu

logs requests and responses with their execution time
* Modified things to do
added method for documenting karibu service
add msgpack to dependency
remove classify from expose
added todos and debugs
jruby benchmark
Added error handling to client and server
Defined error classes
Added timeout for request
Add platform specific msgpack
symbolize keys for request and response unpack
use utf8 for decoding string for unpack msgpack
added custom error
Correction of karibu logger in karibu.rb