Update Rails env files in the test app

* Generate those with Rails 3.2.11.
* Update models to use attr_accessible, as white-listing is on by
default in Rails 3.2.11
Add Russian translation from '0-5' branch and update it.
Update 'query_builder.actions' structure.
Make column config tolerate read_only

Refactor ColumnConfig, add tests.
Refactor and fix default_fields_for_forms

Pass read_only from corresponding column config.
Merge pull request #89 from denispeplin/master

Russian localisation and fixes in i18n of QueryBuilder
Merge remote-tracking branch 'upstream/master'