Phot2lc

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> Small bug fix in the pp_scat function within photfunc.py.
Denominator should have been N-1, not N.

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> Improved the x,y coordinates for text in the "First Image"
window so that each star's label no longer overlaps the
star or circle marker.
> Added an additional curve to the P2P Scatter vs. Aperture
size plot when the Grid search option is used. This
curve, colored red, shows the P2P vs. Ap Size trend for
the grid search's determination of the optimal comp
star combination.
> Improved y-axis scaling of the periodogram plot in the
Aperture Selection window.
> Added legend to P2P vs. ApSize plot showing the comparison
stars used and the minimum P2P scatter value.
> Added a "Time" keyword in the welded light curve header.
> Changed the "UTC" keyword in .lc and .phot file headers to
"Time" to be consistent with the welded file header.
> The quicklook -s option is now for optionally saving rather
than optionally showing the resulting plot. The plot is
now always shown.
> The quicklook output file naming convention was changed
from quicklook_object_date.pdf to quicklook_filename.pdf
where "filename" is the input .lc file's name.
> Fixed bug in photfunc.py's prewhiten function which
calculated one more pre-whitening step than requested.

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> Updates to the quicklook program. Added new command
line options for when performing pre-whitening:
-l --lower, Lower frequency limit for pre-whitening
search (micro-Hertz, default = 500).
-u --upper, Upper frequency limit for pre-whitening
search (micro-Hertz, default = 100,000).
-n --num , Maximum number of pre-whitening iterations
(default = 10).
These new options provide the user with more control
over the pre-whitening process, in particular when the
object of interest shows low-frequency variability.

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> Fixed bug related to the calculation of an
object's declination coordinate after loading it
from the stars.dat file. Objects with negative
declinations were being improperly formatted,
where the minute and second components were being
added as positive values to the degree value
instead of being subtracted.
> Due to the above bug, if you have used phot2lc
prior to this version to calculate barycentric
corrections for objects with negative declinations,
it is highly recommended that you rerun phot2lc
on those objects with this or later versions.

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> Fixed a bug in quicklook which loaded in the
incorrect date for welded phot2lc light curves.

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> Improved layout of the periodogram plot in the
aperture selection window. The y-axis scaling
no longer pushes the significance threshold
text off the top of the plot.