Explored a simple way to know if a task was cancelled
Improved cancelling of tasks groups technique
Added way to know which task was cancelled
Added example for cancelling tasks by group
Updated icon :octocat:
Refactored examples activity
Added cancelTaskById method
Refactored GroundyService and fixed cancelByGroup/cancelById
Refactored groundy manager
Added onCreate method to GroundyTask
Fixed typo and added some docs
Handled NPE after cancelling task
Returning back the original parameters to ResultReceiver
Merge pull request #15 from casidiablo/develop

Explored a simple way to know if a task was cancelled