brought in lock.py from https://github.com/Sage-Bionetworks/DREAM-WGSMutationBenchmark
brought in lock.py from https://github.com/Sage-Bionetworks/DREAM-WGSMutationBenchmark

Sage-Bionetworks/DREAM_Alzheimers_Challenge_Scoring,Sage-Bionetworks/DREAM_Alzheimers_Challenge_Scoring,Sage-Bionetworks/DREAM_Alzheimers_Challenge_Scoring