Updated documentation in com.datatorrent.lib.util
Revert "Updated documentation in com.datatorrent.lib.util"

This reverts commit 8f5b970e4224f78569a1daaa32c50a3bee309a57.
Revert "Revert "Updated documentation in com.datatorrent.lib.util""

This reverts commit cdff9cfb89ea8a6eaf86a60a163dd8edccb3d287.
Merge branch 'SPOI-3197-tim' of github.com:DataTorrent/Malhar into SPOI-3197-tim