Revert "Added attr_accessor for authentication engines. Authenticate method will set this if a user is found. IN-6"

This reverts commit 9a30e41c02d6289244fa3fd8b2ae92b629946988.
Revert "If the engine that was used was the ichain engine and there was no user found, the create a user. IN-6"

This reverts commit bad7fcc87c7fae1605d6123dc2951ed771d1178d.
Revert "Added tests for authentication_engine. IN-6"

This reverts commit b6fb20e387778f0fdcf06cbda8959f8c31c323d6.
Revert "Fixed syntax errors in engines. IN-6"

This reverts commit 7870d1d485be60d0154361b3f6d550e9f58994cd.
Revert "Autoload libraries in /lib IN-6"

This reverts commit df2df704aaa2ac0ce4d06802ee39973c009620fa.
Revert "Initial commit replacing current authentication scheme with modular authentication. IN-6"

This reverts commit 44e425155187c03f31665cc440b7ce82e9aff285.
Revert "Initial commit of authentication libraries. IN-6"

This reverts commit f659eb25725fb26d1a573f55f86951448afe1480.