Added high performance version of the Sessions code as a branch
-rwxr-xr-x Changes
-rwxr-xr-x MANIFEST
-rwxr-xr-x MANIFEST.SKIP
-rwxr-xr-x Makefile.PL
-rwxr-xr-x README
drwxr-xr-x lib
-rwxr-xr-x requirements.txt
drwxr-xr-x t