Added vip question
Added question 2
Added all VIP quiz questions
Added tests for VIP quiz.
Removed unnecessary lines
Made prettier
Added continue state after 4th question
Added helper methods for randomization of questions
Added the list of unanswered questions to the contact
Modified tests to use user defined in beforeEach
Modified all question to use randomization
Added tests for randomization
Modified randomization to choose random question when on continue state
Fixed test for "continue" state
Removed "only" from test
Merge branch 'feature/VIP-quiz' into develop

Conflicts:
	test/app.test.js
Added msisdn to tests