Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  cd5729feb60c336fba4a2446336cab6f69445f76

Refactor editor selection code to be less hardcoded.

This means that individual wikis can set their editor preferences.

Note that now, editors MAY declare an isSupported() function. If this function returns false,
the next editor in the preference list will be loaded instead.

Change-Id: I23abeefafdbc79ac9107334ad8fb96ca4935ecb4