1.0.0 - Spectate is Feature Complete

Spectate is now feature complete. No more new features are likely to be added in the near future.

This release includes a few minor breaking changes:

• event objects are now standard Python dicts (not Immutable "dict-like" objects with attribute access)
• spectate.utils.Immutable no longer exists.
• undo param of spectate.events.rollback() is now required.