1. Created fragment for creating Action Bar.
2. Created fragment for displaying user preferences.
3. Created UserSpecificStepCounter for taking advantage of user
preferences in step counting calculation.
4. Added icons for starting and stopping accelerometer service in Action
Bar.
5. Updated comments.
1. Created individual activities and fragments for expected views.
2. Added fragment for starting activity recognition.
3. Added remaining preferences to user preferences in XML.
4. Created separate dialog fragments for user preferences with variable
inputs.
5. Updated comments.
1. Updated string values.
1. Fixed typo in ActivityRecognitionFragment.
1. Created layouts for an expandable list view that displays questions.