started work on pomodoro feature
first test version of the pomodoro timer
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Merge branch 'development' into Pomodoro

Conflicts:
	src/se/chalmers/mindy/core/MainActivity.java
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Tried fixing conflicts,
Completed Pomodoro fragment functionality.

Completed Pomodoro fragment functionality. Runs in an endless 25/5 loop
until the user presses stop.
Merge branch 'Pomodoro' into development
Merge branch 'development' of https://github.com/henke101/Mindy into development