This compiles, i.e. the default rake task runs w/out errors
and the tests for bayeux_tests and bayeux_network_tests run
AND... the chat application starts... but does not run successfully.
e.g. rake chat starts a server which delivers the UI but entering
a message results in a 404 in response to doing a GET of "say".

Tweaks include changes to the rake file specifying where to get
boost libraries from and removed the "-mt" prefix needed for the
1.50 version of boost that isn't needed for 1.54. ALSO, tweaked
chat.cpp to eliminate a "bind exception" error complaining about
address already in use. This is probably just a difference between
boost 1.50 and 1.54
Merge remote-tracking branch 'upstream/master' into Boost154nRuby193p547
Picked up changes from @TorstenRobitzki to support a pure bayeux chat
  application and it works with boost 1_54 and ruby 1.9.3p547
Try "rake bayeux_chat" and hit http://localhost:8080/ to see it work
Merge pull request #19 from langley/Boost154nRuby193p547

Boost154n ruby193p547