[Review] Request from 'aduffeck' @ 'SUSE/pennyworth/review_141007_fix_raising_exceptions'

Please review the following changes:
  * f4eae4b Fix RSpec warning about stubbing "initialize"
  * f0e856a Fix raising own ExecutionFailed exceptions
  * b4812ae Merge pull request #16 from SUSE/review_141007_fix_option_renaming
  * 2e05ac3 Complete definitions directory option renaming