initial changes in example page to pass call custom parameters
added generate custom API calls with meetingID as default parameter
Change the logic for custom calls a bit and improve the example html

Custom calls are passed now in an extra array instead of using the same
object used to pass the parameters.
The example html was changed to reflect this change and to improve the way
the links are generated in the page to prevent wrong escaping/unescaping
of html characters.
Update coffeescript to 1.6.3 and improve the cakefile
Update the docs