adding tests to image
fixing tests
Merge branch 'master' of github.com:railsrumble/r13-team-113

* 'master' of github.com:railsrumble/r13-team-113:
  Arrange control buttons by 'context'. #10
  Adjust space. #10
  Export. Image list context update last captured image. #10
  All buttons. #3
  Save button and list button #2
  Commands on controls panel. #3