new class: MultiRunner that allows Runner to be instantiated in sequence with specified task ids
new class: ZombieKiller that kills any tasker.php processes that take longer time than specified
Manager class implements option ids that will enable multi runner to be instantiated
priority consts added: PRIORITY_00 to PRIORITY_99
TaskAbstract json_decode escapes new line characters: transforms \n in \\n
Model Mapper Mysql Recurring fetches only active recurring tasks
new constants in Consts class
Removed cleaner from manager; Saving identifier on task insert; Run tasks that have identifier
Merge branch 'develop'