[7] Added producer/consumer framework

Added producer/consumer framework
Merge branch 'BigDataDemo' of https://github.com/doculibre/intelligid.git into BigDataDemo
[7] Corrected problem in Producer/Consumer framework

Corrected problem in Producer/Consumer framework that caused
consumerProducing threads to never stop when work is done
[7] Refactored producer/consumer framework

Refactored producer/consumer framework
[7] Refactored producer/consumer framework

Refactored producer/consumer framework
Merge branch 'BigDataDemo' into TwitterImport