Preparations for the 3.8.0 release.

Preparations for release 3.7.0.

Updating version numbers for release v3.6.

Updating release notes for upcoming version 3.5.0.

Preparations for next release.

Merge branch 'master' into development

Merge branch 'development'

Merge branch 'development'

Merge remote-tracking branch 'origin/development' into master.

Preparations for release 2.14.