Copy & pasting an image sometimes results in bad image height

[philipn]

"Looks like when I copy and paste images using the page editor, it automatically adds the "height: auto!important;" attribute."

Not sure what browser, but we don't whitelist 'height: auto' so this results in a non-rendering image.

Possible fixes:

1. Fix the whitelist to accept height: auto style on image tags.
2. Fix the copy & paste buffer to capture the correct image height rather than sub "height: auto!important"