Add support for GET / POST decorators

[Bystroushaak]

@form_to_params now reads data only from POST parameters.

Add

• @get_to_params
• @post_to_params

Then change @form_to_params to accept BOTH.

[Bystroushaak]

• http://stackoverflow.com/questions/11671154/python-bottle-how-to-read-request-parameters
• http://stackoverflow.com/questions/13039411/how-to-retrive-get-vars-in-python-bottle-app

[Bystroushaak]

Added @get_to_params,