added tests for rewards app
added line to vagrant file that enables us using the pycharm debugger with the vagrant vm
Merge pull request #437 from Bartzi/adding_tests

adding tests for rewards app
beef the enrolment importer test a bit
importer: initial cleanup and refactoring for the overhaul
importer: more refactoring.
importer: more refactoring. give the two importers their own subclasses.
importer: don't remove the last 7 chars of the degree. fixes #177
importer: do some checking on the input data. fix the uncovered errors in sample.xls
importer: add the beginning of a error handling system
importer: use the email address to identify users. generate a username for external users. check for empty fields. fix the sample.xls
importer: add sanity checks. fixes #179
rename enrolment -> enrollment