y-band Template Light Curves for RR Lyrae

The y-band light curve templates for both of the ab-type and c-type RR Lyrae were added to the original RRLyr_ugriz_templates.tar.gz (without changing the filename), which is required by the gatspy period-search package (when using the template-search method). The original file, without the y-band light curve templates and only contains the ugriz-band light curve templates, is available from the astroML data archive. Users who want to use the RR Lyrae light curve templates fitting subroutines from the gatspy package can simply replace this file downloaded from here to the one in the local "astroML_data/Sesar2010" directory, and proceed the usage of gatspy as in other ugriz filters. A paper described the templates in detail was accepted by AJ, and the preprint is available in ArXiV.