[openFate 305593] Send notifications on link, branch and aggregate, show them in interface

Feature added by: Pavol Rusnak <prusnak@novell.com> Feature #305593, revision 1, last change by Title: Send notifications on link, branch and aggregate, show them in interface Buildservice: New Priority Requester: Desirable Requested by: Pavol Rusnak <prusnak@novell.com> Partner organization: openSUSE.org Description: * send notification emails on link, branch and aggregate and/or show how many packages are linked to current package - that should reduce number of deletions which break other people's packages -- openSUSE Feature: https://features.opensuse.org/?rm=feature_show&id=305593