Version check updated to 4 digits & bumped to 1.1

- Version bumped to 1.1.0 for the SDK
- Updated the version checker to accept 4 digits since the new
  builds are all 4 digits (major.minor.micro.build)
- Updated version checker to accept a wildcard 'x' if in settings.py
As build numbers or versions will only ever be internal, the match string should probably only go to (3), and likewise the versions in `settings.py` should only have 3 fields.