Adjust style for test-kitchen finstyle

This commit corrects some style issues that clash with the maintainers
custom style for this project. Some of these included prefering
double-quotes instead of single quotes, removing some whitespace, and
general grammar like is_a over kind_of.
Merge branch 'drag00n-transport' into Transport
Better human_err_msg method
Fix to work with http chef_omnibus_url

Often people will reference getchef.com with http rather then https
for either using proxy caching software or due to The Enterprise
SSL proxy.  This allows the chef_omnibus_url to properly be updated
from .sh to .msi when referenced with http and not https.