add link to documentation in readme
fix bug
add methods adding common target list args and building target lists from args
add program to make histogram of lya absorber redshifts
add option to use weights
adjust clipped return value
add verbose target list load output and change name of function
update names and add some stats to output
add contents directive to dev docs page
add new program for delta field estimation (work in progress)
check for valid continuum value
only save figure
use agg backend
use agg backend
move mpl import in wavelength into plot function
trim plot range
trim plot range
increase number of bins in y
interpolate mean transmission fraction
add count weighting