RNG selections now stable (generated for each input item)
Makefile tweak
added make_info config option, output now RDZ

The 'make_index' option is now 'make_info', with expanded
functionality to handle additional output columns.

The make_info option takes multiple values, roughly the number of
output columns with a fixed order: 1, 2, 4, 7

In addition, the "completeness weight" from the MANGLE mask has now
been relegated to the info file and removed from the typical output.
(This caused confusion on the mock use).
updated example PARAM files with make_info option
squashed read-in bug that set velocity to zero

The make_info option required more columns read from an input
catalog.  However, that change included a flawed sanity check that
accidentally set the velocity to zero if ncols != 6 (the previous
maximum input, so it just wasn't updated). This effectively killed
z-distortions, and launched a rabbit-hole debugging session...