Unwinds flag dependencies in g_order.

A feature added a while back to g_order had a flag dependency
(-calcdist forced -radial). This patch attempts to unwind that
dependency and allow -calcdist independent of -radial.

Fixed help message for -calcdist

Change-Id: I8c368f9109ee305d79a3c0c1b6838439598a4e89
Merge "Unwinds flag dependencies in g_order." into release-4-6