base: messages to flashed_messages macro rename

* Renames `messages()` macro to `flashed_messages()` in order to avoid
  conflict with the messages module.

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>
Grunt: fix for jquery.min.map cleanup

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>
SSO: print statements removal

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>