Merged r12340 from trunk to 2.4-stable.
use escaping html in wiki_syntax_detailed.html.
Merged r12339 from trunk to 2.4-stable (#15524)
Japanese translation updated by Go MAEDA.
use escaping html in wiki_syntax_detailed.html
Japanese translation updated by Go MAEDA (#15524)
Use em.info pour tips.
Removed useless condition.
Move part of the custom field form that is format specific to partials.
Fixed casting of blank values.
Removed Redmine::CustomFieldFormat.
Move edit tag rendering to Redmine::FieldFormat.
