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.
Merged r12331 from trunk to 2.4-stable (#9442)
use escaping html in Russian wiki_syntax.html.
use escaping html in Russian wiki_syntax.html (#9442)
Moved query filter logic to Redmine::FieldFormat.
Moves #as_select to Redmine::FieldFormat.
Moved custom field formatting to Redmine::FieldFormat.
