Revert "Allow user email changes."

This reverts commit 0c532f7330c8f1c37ea25118fbef03d6679d2ea7.
Revert "Make email message better."

This reverts commit 9dda5d1d5621d38ca6a2f661983bbe89016d9b15.
Revert "Add password reset functionality."

This reverts commit 2c8b39b2afbd4acc9daa7247a5f0b3dc531fd006.
Revert "Clean up email address validation."

This reverts commit 087544834005dcafd2ae0eba1dd77eca7438c2f8.
Merge pull request #870 from mmcguinn/scratch

Scratch