Added unix shebang to the lingon.js examples that that they'll work 'out...

... of the box'.

Change-Id: If6df302b9b6d89289d0bf31801263155beb73ca8


Currently, when running through the example, if you just type "./lingon.js" you'll get an error as the shell can't guess what to run the file with.

A shebang solves it! (yay)