Added class for critical section
Critical section updated not to be static class
Used critical section in Cronner class
Fixed escaping of class name
Fixed usage of deprecated method
Updated test for critical section
Updated critical section to create directory for its files
Added test to check correct functionality of two independent handlers
Fixed blocking locking
Updated usage of task name in runner
Added missing tmp directory for HHVM tests
Merge pull request #22 from stekycz/feature/critical-section

Critical section for each task