added canFail option to ask to enable graceful exit if task error, can use this statements to none essential tasks
added canFail option to ask to enable graceful exit if task error, can use this statements to none essential tasks

MonashBioinformaticsPlatform/RNAsik-pipe,MonashBioinformaticsPlatform/RNAsik-pipe,MonashBioinformaticsPlatform/RNAsik-pipe