Version 0.6.3

1. Improvements
   1.1 Starting with Debian9/Stretch and sfdisk 2.27.1 the messages format changed. Debian8/Stretch is now supported by raspiBackup
   1.2 Better error message handling
   1.3 Display progress when creating a backup or restoring backup
   1.4 Boot partition can be located on root partition
2. Bugfix
   2.1 When using the fake mode the new empty backup directory will be deleted
   2.2 Partition oriented backup supports > 9 partitions
   2.3 Stopped services will be started again when backup is aborted with CTRLC