A leading / should create a different topic

Closes #48.
Merge pull request #46 from clementineinc/master

Conflicts:
	lib/client.js
Bumped version 0.9.1. Updated HISTORY.
Add syntax highlighting to Readme
Merge pull request #50 from timoxley/patch-1

Add syntax highlighting to Readme
Added an `ascoltatore` option in mosca.Server.
Improved the constructor of the mosca.Server.

The constructor can now be called without the 'new' and it yields
the server as the second object of the callback.
Bumped v0.9.2. Updated HISTORY.
Persistance back working. Upgraded LevelUp. Fixed level-fix-range version.
Refactored and improved logger setup.
Fixed Logger#child calls to actually create a child logger.
Bumped v0.9.3. Updated HISTORY.
Better introduction
Better introduction
Better client configuration
Improved client authorization
better terminal examples
better terminal examples
better terminal examples
better terminal examples