Initial version

Initial version of the module

Todo still:

- [x] 1 unit test is still failing, this should be fixed (currently disabled)
- [x] Coveralls does not yet show coverage reports ( ![Coverage Status](http://img.shields.io/coveralls/inventid/ideal/initialVersion.svg) )
- [x] Local tests are not sufficiently adequate ( captures of purchases specifically)
- [x] Explain usage in readme

@joostverdoorn could you have a first look?