Statistics

Graphs
Updated Statistics and main Activity
Updated statistics and main activity
D
Added icons and XML's for  statistics
Added Overall Statistics and Database queries for the same
Changed Layout files and manifest file
Added Statistics Activities for Overall and Taskwise tasks
WiFi Fix
Merge remote-tracking branch 'origin/contextawareness' into latest

Conflicts:
	src/iiitd/mc/timetracker/data/TaskRecorderService.java
cleaned up LocationTaskSuggestor, removing extra button and toast messages
fixed getTasks(String name) to match the name case insensitive
improved notifications about suggested tasks - less frequent
fixed crash with manually created tasks (Recording.macAddress null)
Updated xml file for taskwise stats
Updated taskwise Statistics activities
Updated Statistics Activities
Removed unused code form OverallStats
Merge branch 'master' into statsb1
Fixed Custom Range statistics