Added test to check for correct content-length with unicode characters in message.  This test passes with Ruby 1.8.7 but fails with Ruby 1.9.2.
Added test to check for correct content-length with unicode characters in message.  This test passes with Ruby 1.8.7 but fails with Ruby 1.9.2.

ripienaar/stomp,gmallard/stomp,stompgem/stomp,michaelklishin/stomp,sectioneight/stomp,gmallard/stomp,stompgem/stomp