Fixed shifting problems with steam ids.

The shifting was done the wrong way around which lead to problems when accessing the steam id and possibly other long values.
Merge pull request #7 from Kolpa/patch-1

Fixed shifting problems with steam ids.
Fixed check that detects if 'kind' is compressed
Merge pull request #8 from Psimage/master

Fixed check that detects if 'kind' is compressed
update protobuf definitions to match 6.81 replays