- Added `cron` command to run lists with `cron` time specifed
- Changed `-c` flag to `-f` flag for passing config file
- Modified some config keys
- cmdArgs -> Args
- Got rid of `hosts.config`
- better SSH handling
- respects values in config file
- Added exec command to execute individual commands
- Added --lists, -l flag to backup command
- Run command lists (#1)
- Small touchups and documentation
