smurf: Update list of CSO fits.

I updated the list of CSO fits to include the dates between 20140710
and 20140731.
CVG: Consistency tidying.
CVG .gitignore: Files used to build SUN/268.
README: Add CentOS 7 prerequisites.

This may not be complete and libxml2-devel has yet to be confirmed
as enabling the SOAP::Lite build (for Astro::Catlog).
KAPPA: Prevent segv when using variance in MSTATS.

KPS1_MSAGx only processes one array component at a time, so call
separately for DATA and VARIANCE components.  This could be changed,
but adding extra calls with distinct pointers in IPIN does the trick.
KAPPA: Protect against an abort for one of the parameters in MSTATS.
pal: Ensure libtoolize copies ltmain.sh etc to the proper places
smurf: Record the number of chunks used by makemap in the output map.

The number of chunks used is now stored in new item "NCHUNK" within
the SMURF extension of the output map.
smurf: Only check for FLT parameters if FLT is being used