Stop point on exercise 7.2
Finish user signup
Add SSL in production
Performance of 6.5 exercise
Revert "Performance of 6.5 exercise"

This reverts commit 1cdc6c8149efb3df78ac769675269897cd2af8d9.
Revert "Revert "Performance of 7.6 exercise""

This reverts commit f9940997132672de533ce7edf658b66afa4096b3.
completion of the basic authentication functionality