Enhancement: Added check within type checker to emit an error when code attempts to assign a value to a generic type (e.g. "Dict[str, str] = {}").
Enhancement: Implemented support in type checker for Python's "comparison chaining" feature (e.g. "3 < a < 4").
Enhancement: Augmented static expression evaluation to handle "and" and "or" expressions.
Bug Fix: Fixed a bunch of misspellings in error and warning text.
Bug Fix: Fixed a bug in the auto-complete feature that caused new import symbols to be inserted in the wrong place if the previous symbol (alphabetically) had an "as" clause.
Bug Fix: Fixed a bug in the auto-complete feature that caused bad performance for really large code bases.