The Zooming Image Tool does not load properly, currently, and even if it
did, relying on an external Javascript to function across releases is
not something we can support. Thus, we remove it from the list of HTML
block templates until such time as a more robust solution is found.
- Moving xmodule folder to root as we're dissolving sub-projects of common folder in edx-platform
- More info: https://openedx.atlassian.net/browse/BOM-2579
- -e common/lib/xmodule has been removed from the requirements as xmodule has itself become the part of edx-platform and not being installed through requirements
- The test files common/lib/xmodule/test_files/ have been removed as they are not being used anymore
