GTNPORTAL-3358: Add redirect admin ui icons files with warning sign included.
GTNPORTAL-3359 - Supressed WSRP-related exceptions on shutdown

Supressed the exception thrown in case something goes wrong while shutting down the consumers, as we cannot guarantee that the stop routine for WSRP will be called before the stop routine for the JCR connection manager. The proper solution would be to find a way to hook into the JCR shutdown and stop it before the JCR connection manager shuts down, but there doesn't seems to be a way to do it.
GTNPORTAL-3363 - Added INFO logging when loading of gadget is blocked

When a gadget has content that is remote to the server and is not white-listed (or is blacklisted), provide a INFO-level log about it, instead of just silently failing.
GTNPORTAL-3362 Add examples for Inter Portlet Communication
GTNPORTAL-3361 - Added Cache-Control configuration option

Each portal now can set its own Cache-Control policy, the default being the value which is currently being used, for backwards compatibility.
GTNPORTAL-3361 Moved the setting of the cache-control header to before the processRequest
GTNPORTAL-3361 - Added URLEncoding to avoid possible attacks on the header