Bump version to 2020.04 final

Bump version to rc4

Bump version to 2020.04-rc3

Bumped version to 2020.04-rc2

Merge pull request OPM#1731 from joakim-hove/segment-depth-change

Add method WellSegments::segmentDepthChange()

Merge pull request OPM#1529 from akva2/internalize_tlmixpar

internalize TLMIXPAR

Release 2019.10

4th candidate for release 2019.10

3rd candidate for 2019.10 release

Second candidate for release 2019.10