Default values and BareURN

In this pull request :
- Default http set to http://localhost:8080
- Function bareURN, splitURN, validateFullURN now remove the id part of the urn
- Command 'npm test' was added in package.json
- minor Fixes in example/connectionOptions.js

I can't run test on hubiquitus4js. 
Do I have to run hubiquitus4js against a specific topology ?