#9 interfaces for requests and responses added
#9 added a getMapping on the registry, usefull in request object to get all headers
#9 added the possibility to set a context object on the listener
#9 added default implementation of the RequestInterface
#9 added the possibility to set a 'type' to a request, useful to tell we want a DOM as request response
#9 created new objects to ease the request of JSON and HTML documents
#9 response implementation added + specific html and json responses added as well
#9 forgot to set getter/setter for requests URI
#9 need to return the mapping instead of just values
#9 added an object to parse the headers string
#9 Added the http manager and included the whole package to the page
#9 forgot to remove the request from the pool when the request is done
Close #9 Merge branch 'feature/http' into develop