Removed useless :lang option.
Makes labelled_tabular_form_for accept different signatures.
Prevent clash with Rails 3 Query module.
Do not use .merge_conditions.
Do not use instance variable.
Use controller instead of instance variable.
Initialize @childrenHash.
Added pt-BR translation for #2269.
pdf: lib: remove unused "include Redmine::I18n" from RDMPdfEncoding class