initial import
update
fixed short option for help
added option to skip apt-clone
added option to choose file to write to (STDOUT is default)
added exit code to execute method
default output is an appropriate file:
 none  -> backup.tar
 bzip2 -> backup.tar.bz
 ...

(try to find parallel commands of gzip (pigz) and bzip2 (pbzip2))
now add symlinks as symlinks
added missing files
added option to print config
added option to print config and exits
added option to set compression level
made some major enhancements
made stderr captured
some cleanups
modularized
some includes
cleanup
Merge branch 'origin/master'