missing css/cropper.css
adding index.html to test dir to expose path problems when serving
add "untracked" directory to .gitignore

also ignore the file that pip creates when it installs
wearscript-python
fix type of time when calculating queue item processing time
enable finishing in test.many-clients
many-clients test: add window closing on finish
use greenlets in more places on server
more safety in websocket exception log messages