Revert "fix a cucumber web_step"

This reverts commit 6e0d0cdc99e1b8e5f97db54519247a1961af1f44.
Revert "repair custom_field cuke"

This reverts commit bae697185d83718d824b2d0e21a262cb81c84209.
capybara does not ignore hidden elements anymore
Merge branch 'feature/rails3' of github.com:opf/openproject into feature/rails3