Support per-wiki $wgUrlProtocols in tokenizer

Depends on core patch, change I5fd130cb30313f8e8a376ff0146195f2264e8e0e

Protocols are now validated in the tokenizer.

Change-Id: I733d3f9d6806baeb33a1f7d8864b57fb1ec01fc8
Merge "Support per-wiki $wgUrlProtocols in tokenizer"