Updated dseries submodule (flip method and geometric nanmean).

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Updated dseries submodule (flip method and geometric nanmean).
3e408ffd · Stéphane Adjemian · 89dc67eb · c9def378 · e2533209 · c9def378
Verified Commit 3e408ffd authored 5 years ago by Stéphane Adjemian
--- a/dseries @ c9def378
+++ b/dseries @ c9def378
-Subproject commit e25332099cf85d6d3f3d6278528bf3737b589056
+Subproject commit c9def378aaa36ab8abbab6f0d2866859e5e8b7f7