8.1 Sessions and signin failure: 50 examples, 4 failures
8.2.1 Remember me
8.2.2 A working sign_in method
8.2.2 A working sign_in method
Revert "8.2.2 A working sign_in method"

This reverts commit 6bf22e72e724fd2e9655539e927e5d3d3123d6a6.
8.2.3 Current user
8.2.4 Changing the layout links
8.2.5 Signin upon signup
8.2.6 Signing out