implement test application to test contextlogger

[ktkarhu]

• When application is started, context logger starts logging all included sensors
• When application is running user has possibility to communicate that he has now started specific activity (start button?)
• There should be a list of following predefined activities available (dropdown menu?):
  1. At home
  2. At work
  3. Walking
  4. Cycling
  5. Driving a car
  6. In a bus
  7. In a train
  8. In a subway
  9. Taking a taxi
• There should also be possibility to define your own context (free text field?) instead of predefined contexts
• It should also be possible to communicate that I have now stopped the activity (stop button?)

[ktkarhu]

In addition to stop there should be possibility to say discard if user forgot to stop the activity at right time stamp