improve the log message at CONNECT in index_fallback.html
some cosmetic change in echo and helloworld's index.html
fix the swaggersocket's filter position to have the length-delimiter is added only at the entire message
adjust swaggersocket.js to make swaggersocket.js based samples work
Merge pull request #15 from elakito/upgrade

Fix for updating swaggersocket to work with atmosphere 2.x regarding the length-delimiter filter, etc