OPERA R6 DIST-S1 PGE Release Candidate 4.0

Official release candidate v4.0 of the R6 DIST-S1 PGE. This version incorporates the v2.0.8 "CalVal" release of the DIST-S1 SAS.

This SAS release addressed a critical bug preventing testing with baselines with more than 10 sensing dates.

What's Changed

• DIST-S1 PGE CalVal 4.4 SAS v2.0.8 Integration by @RKuttruff in #753
• DIST-S1 PGE Release 6.0.0-rc.4.0 by @RKuttruff in #754

Full Changelog: 6.0.0-rc.3.0...6.0.0-rc.4.0