- search_for_cask in missing_formula renamed to is_a_cask_reason
- is_a_cask calls new getInfo method in cask/cmd/info.rb to return info
string
- self.info in info.rb now calls getInfo and puts return value
- added ohai_title to return the ohai printout for only titles, so that
ohai printout could be added to the getInfo return string without
calling puts.
- refactored ohai to use ohai_title
- updated info_spec.rb cask info test to be more specific when
matching stderr.
- is_a_cask_reason will respect 'silent'
- refactored print_caveats to return instead of print
