Fix typo in json parsing for parameters command line option
Merge branch 'master' of github.com:aeolusproject/imagefactory

* 'master' of github.com:aeolusproject/imagefactory:
  actually added the new utility method for reading credentials file
  fixes 287.  Added utility method for reading credentials and fixed method for reading provider info.
  added oauth and ssl support to the end to end test.
  Enhanced the end to end test script for testing combinations of all OS and providers.
  fixed more of delete API calls :)
  fixed the rest of delete API calls
  Fixed positional argument
  fixes 288.  Fixed DELETE requests in REST API.