added AutoRecorder stub and triggers to run it regularly
made all activities scrollable.
fixes #37
added confirmation dialog before deleting task
show latest day's recordings expanded initially
added notification and vibrate to AutoRecorder
changed broadcast type to listen for Wifi status changes
cleaned up TaskSuggestors:
Now all implementing ITaskSuggestor interface.
CustomArrayAdapter dealing with Task objects directly instead of String lists
comments and cleanup
changed TaskSuggestors to use a new SuggestedTask wrapper class that contains a probability field
implemented proper probability calculation for recent tasks
fixed probability accumulation of MainTaskSuggestor and made all TaskSuggestors sort suggestions by probability.
implemented AutoRecorder actions
Merge branch 'master' into autoRecorder

Conflicts:
	res/values/strings.xml
LocationTaskSuggestor class added
DataBase Controller minor change for testing
Merge branch 'master' of https://github.com/MC-Timetracker/timetracker into contextawareness

Conflicts:
	AndroidManifest.xml
Merge branch 'contextawareness' of https://github.com/MC-Timetracker/timetracker into contextawareness

Conflicts:
	src/iiitd/mc/timetracker/data/Recording.java
final location task suggestions added