PLA-1316 adding ExpectedEvent class and EventParameter enum
Finishing ExpectedEvent class and definint pushToTop Expected Event
refactoring infrastructure to use javax.json library
modyfing comparing methods to JsonObject
deleting outdated files

adding necessary JSON methods for clicktracking
self CR fixes
Adressing Code review notes
indentation fixes
adding the test to testSuite for testing
Merge pull request #175 from Wikia/PLA-1316

Pla 1316