natural sort for files and folders in listings
rebuild listing pages if the folders or files listed change
fix #1144
flake8
fix #1142
fix #1095
fix #1147
sort tags to make it predictable
fix #1148
updated baseline, I have no idea what I am doing
Hire Travis to download baselines

cc @ralsina

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
missing `short` parameter for getpyver.py

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Fix #1148 -- fix EXIF metadata in demo gallery.

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Merge pull request #1149 from getnikola/fix-exif

Fix #1148 -- fix EXIF metadata in demo gallery.
Merge remote-tracking branch 'origin/master' into themable-base