1.0.3: Merge pull request #8 from zec/ordering-201606

GRNOC TSDS Aggregate 1.0.3 -- Fri Jun 24 2016

Features:

• ISSUE=530 Added knob to control maximum amount of data fetched in a single
  block. This allows better control over server behavior and should help with situations
  like data backfill from choking up the server.

Fixes:

• ISSUE=821 Slight change in architecture to fork a new temporary process that does
  the actual work to work around perl memory management issues. Impact should be that
  while idling until next run considerably less memory should be held onto.