Tweaking thumbnailing.
Playing with thumbnailing; non-square and alternative-square methods. Added k-means color average function.
Merge remote-tracking branch 'upstream/master'
Pull questionably licenseable k-means color averaging code from scrape.py
And pull the now-unneeded includes for that code.
Properly implement placeholder function.
Thumbnailing type is now configurable in the config file.
Remove debug print.
Updates per comments from malorisdead.
Let's keep the variable naming consistent.
Merge pull request #20 from lordastley/thumbnail_update

Add more options for creating thumbnails