make the http service client-server side compatible
remove the silly AppEnv, basic services now global
Js backend layer and hybrid client-server rendering in the works. A lot
of the basics is done.
* Put history and jsdepcheck in a jsbackend layer (watch.js to come)
* New unified Dom API with 2 modules for client-side (JQuery) and
server-side (go.net/html and Goquery) dom manipulation
* Http test mock API
* Wade HTML import working with the new Dom API, a proper test is made
for it