Re-enable E1101 message from Pylint

[rnowling-memphis]

E1101 (no-member) is raised when trying to access a member of an object that doesn't exist. This can generate false positives but it's a really good sanity check to have enabled. Once #159 and #158 are handled through either code changes or locally disabling the E1101 message, E1101 should be reenabled globally.