there is no need to secure the dyn directory on its own, as the entire data folder is now protected (see the setup app)

--HG--
branch : 0.9
extra : rebase_source : 4842d86e334f4e5a6af675fec2895a44a2964112
added getRequestPath() to sly_Request

--HG--
branch : 0.9
make sure application/json gets the charset appended

--HG--
branch : 0.9
make it easier to inherit the user service

--HG--
branch : 0.9
let the caller know if we actually opened a session

--HG--
branch : 0.9
allow to give an explicit sessionID when starting a session

--HG--
branch : 0.9