Added secret keys for CSRF.
Started work on CSRF
Added mock requirement to the readme.
Moved login() to testutil.
Removed whitespace
Added constant time equality test.

Started validation.
I can log out and log back in with the same user.
Token validation works.
Finished CSRF helper.
CSRF tokens are integrated into handlers and tests.
Merge branch 'master' into samking-base-handler

Conflicts:
	functional_tests.py
	handlers.py
	testing/testutil.py
	views/display_project.html
Merge branch 'master' into samking-base-handler

Conflicts:
	README.md
	ctc/functional_tests.py
	ctc/handlers.py
Import fixes and style tweaks.
Fixed tests broken by csrf tokens and import changes.
100% coverage
Improved login and csrf tests.
Moved login, logout, and csrf into BaseHandler.