More photo optimization

I'm going to convert a batch of thumbnail images from png to jpg using Advanced Batch Image Converter from Sourceforge. Before conversion, there were 1,247 thumbs, 116 of which are PNG format. Converting those 116 PNGs to JPGs reduced overall directory size from 8.x Mb to 6.x Mb. Then I ran RIOT on the photos, after which the directory size was 5.01 Mb. Uploading thumbs back to their website subdirectory now.

I'm ready to resume optimizing at j*.jpg