Fix specs after rebase with translations branch
Fix specs after rebase with translations branch

- Fix spec spec/features/management/proposals_spec.rb:24 adding single quotes.
- Remove spec related with 'proposal improvement info link' as master branch.
- Fix proposal rake task (now proposals have translations). We put the 'validate: false' to keep the existing html tags in the  proposal's description. Without the sanitizable module deleting them.

usabi/consul_san_borondon,consul/consul,usabi/consul_san_borondon,consul/consul,usabi/consul_san_borondon,consul/consul,usabi/consul_san_borondon,consul/consul,consul/consul