Version 0.6.3.1

1. Improvements
   1.1 There exists another extensionpoint which is called just before starting the backup . That way it's possible to access internal variables of raspiBackup like the backup directory name. See also #16
   1.2 Test whether symlinks can be created on backup partition if rsync is used. See also #19

2. Bugfixes
   2.1) Fixed errorhandling of backuptools. git issue. Bug exists since v0.6.2. See #18. Users of tar backup should upgrade to this release.
   2.2) Fixed DHCP restore problem with tar
   2.3) raspiBackuprestore2Image fails on Stretch. See #23

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