slaprunner: update egg versions.
slaprunner: After restauration script

This permits invoke custom code after copy the instance to the right location [Working in progress for better restauration]
slaprunner: Accept custom exclude file to optimize backup.
slaprunner: concatenate exporter.exclude file of each partition of the runner and write it in the standard location.

Allow to exclude things from inside of the runner's partitions without knowing what instance it is.
fixup! slaprunner: Accept custom exclude file to optimize backup.