Version and help command flag improvements

[ijacobs-cpa]

The version flag only prints out the version number, not the version number + name of the program as described in the release 0.1 notes.

The help flag could use some more detail including some instructions on how to use the program (like how you display it in GitHub) and the other available command flags (-h, --help) and what they do.

[mingming-ma]

Fix this issue in commit 8f2adb5