Add Options

Add options to simplify cron usage:

• -q | --quiet: hide all output
• -p | --plain: plain output, no color
• -h | --help: show usage
• -u | --usage: show usage
• -V | --version: show version
• --s3cmd-config [path/to/.s3cfg]: path to s3cmd configuration file
• --s3cmd-bin [path/to/s3cmd]: path to s3cmd binary