Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  8afe5ef9d94f52c90a58589a5d12c3c43cd0dd7b

(Bug 42803) Apply I/B minimization to incoming HTML

* Minimizes I/B tags on incoming HTML.
* Added a bunch of parsoid-only html2wt tests with expectations
  about this code (all tests pass).

Change-Id: I9dc00f6d05932bdfd8e7586323abe44addfc26ff