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
This will (incorrectly) give an "Invalid version format" warning if run against a 1.0.0 robot (w/old versioning scheme) - instead of a "Software version Mismatch" error.  It should either check for both forms, or not check for the 4th+ field at all.

I believe I put the 4th field in there originally as a form of "checking it was actually an expected version string".  It is probably unnecessary.