added changelog
Added method to pass cookies on conenct
update readme: add OSX install instructions + remove ARC chapter
update readme: add another delegate example + fix typos
v0.5

  update SocketRocket submodule
  update readme to reflect the recent changes
  finally remove deprecated delegate methods
  Make transports dynamic loadable (based on available classes)
  Removed SBJson & JSONKit dependencies
  Debugging should only happen if it is build for debugging (DEBUG is defined if compiled by XCODE for debugging/not release)
Merge commit 'e0e4f621048f6f4b16c67b3f9ca525152d23e4bd' into develop
adjust cookie implementation
add cookie example
distinguish between handshake failed and unauthorized handshake
add examples for different event data types. ref #158
add extra contributors file
bump version to v0.5.1 + clean up