Merge pull request natcap#422 from dcdenu4/release/release-39

Release/release 39

Committing the 3.8.9 release.

Committing the 3.8.8 release.

Auto-committing updates for the 3.8.7 release

Auto-committing updates for the 3.8.6 release

Auto-committing updates for the 3.8.5 release

Auto-committing updates for the 3.8.4 release

Auto-committing updates for the 3.8.3 release

Auto-committing updates for the 3.8.2 release

Auto-committing updates for the 3.8.1 release