Revert "fixed wiki controller test"

This reverts commit 50f4f7b157d86eb8310a4601f4c60b4be15f77dd.
Revert "fixes wiki#create"

This reverts commit 5010645823ab5f000a0a231880f74c3e3cec23e8.
finally fixed wiki#create
Merge branch 'feature/rails3' of github.com:opf/openproject into feature/rails3