[DF-420] Merge remote-tracking branch 'dava/feature-dxt2' into ResourceEditor-DXT-hardware-test
[DF-507] Fix fog disabling after custom color switching, fix save file asking in custom color tool.
Merge branch 'ResourceEditorQt-FogFix(DF-507)' of https://github.com/adebt/dava.framework into development
Revert "[DF-507] Fix fog disabling after custom color switching, fix save file asking in custom color tool."

This reverts commit 8d232a98a088c040ae0a030d3a1fb0db3dc656dd.
Merge branch 'development' into feature-dxt2