Restore notifications

Restore notifications to the community 2.11.x files.
In order to build and test locally, skipping notifications, you can either:
* create a custom local copy of community-2.11.x.dbuild/.sh, removing the notifications (as long as you include common-2.11 you will still be testing the same set of projects),
* or, more simply, just call dbuild-runner or community-2.11.x.sh adding the "-l" ("--local") option.

Please type ``./community-2.11.x.sh --help`` to find out more.