make a generic extractor of surface flux variables

reads a list of fields and a dimension range and returns the variables
in a structure
deblank feildnames
use surfluxvars, change locatio of default dag file
generalize extraction of variables from dag file

This may not work yet!
fix missing quotes arround default field names
use dagvars in DAGprofiles and DAGheatprofiles
extract a set of variables from a dag file
Plot heat transport profiles
gnuplot script for plotting heat profiles
Convert Heat flux to buoyancy flux
use JhtoJb to onver heat to buoyancy flux
place dagvar in main script directory
plot heat profiles with gnuplot
Add labels, colorbars, change T'^2 to logscale
make z cordinate negative in temp plots
spelling correction in comments
make a specialized fit for filterd UV
filter using a running nanmean
add approximate values to the output of fitLegendre
Add limiting depth and a window of times to average over

average over a window of times arround wantdate,
Set a maximum depth
use findgsw to chech foe Gibbs Sea Water
plot output as png in directory