Initial commit. Used generator Thor::Sandbox::Gem::Base
Added rsync backup shell script
Implemented sparse backups with rsync. Reduces inode usage.
* Temporary ignore exit code 23.
* Fixed log file compression if rsync exited non zero.
Fixed sync status check.
Added multiple benchmark/evaluation scripts. 
Added thoughts and benchmark results to README.
Moved all librsync specific code into subfolder deltastore
Initial rsync backup script with test script.