Extension that fixes loading extensions from the user config file.

This IDLE extension patches IDLE to be able to properly load extensions from the user configuration directory (~/.idlerc/config-extensions.cfg) instead of forcing you to modify the root extension file.

1. Go to terminal and install with pip install idleuserextend.
2. Run command idleuserextend. You should see the following output: Config should be good!.
3. Open IDLE, go to Options -> Configure IDLE -> Extensions. If everything went well, alongside ZzDummy there should be and option called idleuserextend. All extensions are now able to load from the user extension configuration file alone, no need to modify config-extensions.def in /usr/lib/python3.XX/idlelib anymore!

enable toggles whether the extension is active or not.