Update gitignore
Add chronometer to quiz fragment
1. Implement setting up different types of quiz 2. Refactor QuizFragment
Implement random timer quiz
Implement flasher and hook up different quiz types to menu
Merge branch 'master' of https://github.com/MohamedIsmat/SummerProject
Merge branch 'master' into quiz-types

Conflicts:
	Heartbeat/res/layout/random_clock.xml
	Heartbeat/src/com/ismat/heartbeat/RandomClock.java
	Heartbeat/src/com/ismat/heartbeat/SixSecondTechnique.java
Refactor quiz fragment