Improve command line help

Description

Several tasks related to command line help:

1. Print a tip to stdout at program startup that describes how to show all options. For example,

'Tip: Use "openVisualizerGui.py -h" to show all startup options'

2. Fix openVisualizerWeb help output. Presently it shows only the host and port options. This is due to the split handling of options between openVisualizerWeb.py and openVisualizerApp.py.

3. Generally make help more descriptive. For example, argparse includes a 'description' parameter [1].

[1] http://localhost/~kbee/python-doc/library/argparse.html#argumentparser-objects

Environment

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Assignee

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Reporter

Ken Bannister

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