Updated mediawiki/extensions
Project: mediawiki/extensions/wikihiero  3abbc1a001ae3845889bd37fd50dd20abec0d94d

Bring in VisualEditor support from VE extension

Enables editing of hiero instances, but doesn't add
to the toolbar by default.

Depends on hiero code being removed from VE extension.

Change-Id: If55af2adf3b2e10b5e1aeb15d9661f7a19e072d8