Revert d90a0ec..14d28ae

This rolls back to commit d90a0ec4de220064c8fe44d55783aa2268f04c45.
Revert bc1fe38..48af49a

This rolls back to commit bc1fe38214579df77f0b76a772ffefc5693edf92.
Revert e5dff2e..96db842

This rolls back to commit e5dff2e4023f38ec15c6a85296be7a4f96c14cc6.
Revert "specified version in gemfiles"

This reverts commit bf8157f40f56b961ea9dc860f688b9befe0448c6.