Add  a UrlParameter class that will present parameters to send to a
URLPattern .
UrlParameter : Name , Value, and Type(constantValue,patternExpression).
add variable for method distinction for URLPAttern (GET or POST)
Add type for field ( text, img, binary,long,double)
Add a PageTemplate : template are extracted from the url that match the
urlPattern
Add ParametereValue , class that present a value of a URLParameter used
to request a concrete url .
Comment.
replace Website.find by Website.findByHost
Comment.
Comment.
Load website based on laodStratey.