rails 4
Revert "rails 4"

This reverts commit 2b3aaf0078a39c03ab5b8c1dfb2bca0a943375d2.
Revert "Revert "rails 4""

This reverts commit e17d20fa824a3884572612b609b913c22f5bbc47.
Revert "rails 4"

This reverts commit 2b3aaf0078a39c03ab5b8c1dfb2bca0a943375d2.
stable