Fix shutdown.
Add counters to track filesystem usage for HDS.
Benchmark application for HDS
SPOI-3304 #comment changes to adhere to API
Cleanup regex instantiation code.
removed references to FSUtils
removed unused imports
Support for read/modify/write support for HDS for aggregation
Merge branch 'hdsbenchmark' into SPOI-3341
fix compile errro with laster core changes
Merge branch 'SPOI-3341' of github.com:tushargosavi/Malhar into SPOI-3341