Update README.md with correct usage
Update links and titles of documentation
Revert "Use http endpoint by default"

This reverts commit da7161e3720d284962db2738bcbc2d1635d03997.
Rename Device#fetch_stream to Device#stream for consistency's sake
Fix: Key is a subclass of M2X::Client::Resource
Update Distribution documentation
Update Device documentation
Update Key documentation
Update Stream documentation