Combine texture & image format selection into one enum
Render targets
Use the EXT versions in all FBO operations, should have better compatibility
Show text on worldview when game paused
Ships with zero price won't appear on market
Merge remote-tracking branch 'luomu/unbuyable-ships'
Merge remote-tracking branch 'luomu/indicate-pause'
Merge remote-tracking branch 'luomu/render-targets' into render-targets
update autotools build for rendertargets
make friend class explicit, gcc interpreted it as Graphics::GL2::RendererGL2
Merge branch 'render-targets'
fix line endings
Remove DeadVideoLink