Wrap everthing into main(), add command line parser, implement proper scroll.
Wrap everthing into main(), add command line parser, implement proper scroll.

Add better description to top docstring.

MITRECND/multiscanner,jmlong1027/multiscanner,awest1339/multiscanner,MITRECND/multiscanner,mitre/multiscanner,jmlong1027/multiscanner,awest1339/multiscanner,jmlong1027/multiscanner,mitre/multiscanner,mitre/multiscanner,awest1339/multiscanner,jmlong1027/multiscanner,awest1339/multiscanner