Improved Test and Brew Audit Fixes

[harens]

I tried to get the formulae to the same standards as if they were in Homebrew/homebrew-core. This involved doing the following:

• Improving the rigour of the test
• Using the new Ruby 1.9 hash syntax
• Applying general brew audit corrections

I have tried to not get in the way of the update_hb.py script, but let me know if I need to correct anything. Thanks.

[rojer]

thank you!