Unvanquished 0.54.1 beta

Unvanquished 0.54.0 beta

Unvanquished 0.53.2 beta

Unvanquished 0.53.1 beta

Unvanquished 0.53.0 beta

Unvanquished 0.52.1 beta

Unvanquished 0.52 beta

Merge pull request #9 from Unity-Technologies/unity

Implement ETC1S/ETC2AS image compression / better thread management

Make top mip-level renormalization an opt-out option

- Make -renormalize work on the top mip-level too.

Some tools scale the vectors in normalmaps to maximum length for
increased precision, but that breaks reconstruction of the z part
in DXN compressed normal maps. Passing -renormalize on compression
fixes those textures now.

- Make top mip-level renormalization an opt-out option

Users can use -renormalize -rtopmip