Turn example/analysis into a more complete CLI utility

[rocky]

• mythx-analysis:
  • supports more complete analyze library options, --version, --timeout, --delay, and --debug
• Go over README descriptions:
  • top-level, example/README.md, package.json
• include test directory in distribution
• distrubute example/mythx-analysis as a standalone program
• add some Solidity example files

[coveralls]

Pull Request Test Coverage Report for Build 327

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 81.535%

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Totals
Change from base Build 326:	0.0%
Covered Lines:	242
Relevant Lines:	290

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💛 - Coveralls