Need to upgrade unity3d Post Processing Profiles from V1 to V2? These scripts might help.
Does not port all functions - some are not supported in V2 - see comments for details, needs more testing.
Colour grading now (mostly) works fairly accurately, however this asset now requires the SC Post Effects asset in order to work correctly (this is because we've got a dependency on a final LUT pass - which the existing PPv2 stack does not support on its own) - it should be relatively easy to re-implement a final LUT pass yourself and update this asset.
The hard bit is in the LUT texture generation. This is however, left as an exercise to the reader.