Fix up conditions when consuming nowiki tokens in tmpl args

 * Nowiki span end tokens require a proper typeof.

 * An error was being suppressed on cawiki/2011_en_els_vols_espacials

 * Uncaught errors in domHandlers should panic.

Change-Id: Icad18c7d2c22714ddbb2aef96b643bfd22c4aeb9
Merge "Fix up conditions when consuming nowiki tokens in tmpl args"