Various changes to httpclient tests:
Various changes to httpclient tests:

 * Move asserts from callbacks into main test functions to fix stack trace info
 * Update to recent changes in httpclient error callback handling
 * Add 1 second delay after starting the server to fix race condition on my box

oberhamsi/ringojs,Transcordia/ringojs,ashwinrayaprolu1984/ringojs,ashwinrayaprolu1984/ringojs,Transcordia/ringojs,oberhamsi/ringojs,ashwinrayaprolu1984/ringojs,Transcordia/ringojs,ringo/ringojs,ashwinrayaprolu1984/ringojs,ringo/ringojs,ringo/ringojs,oberhamsi/ringojs,ringo/ringojs,Transcordia/ringojs