When a package base is merged into another one, followers of the old
package base usually want to be notified about comments the new package
base as well.
Fixes FS#27687.
Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>
Use a Python script for sending notification emails. The notification
action and additional parameters are passed via command line arguments.
For comment and package request notifications, the text is passed via
stdin.
Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>
