Merge branch 'devel' for 1.10.0 release

Merge branch 'devel' for 1.9.8 release

Merge branch 'devel' for v1.9.7 release

Merge branch 'devel' for v1.9.6 release

Merge branch 'devel' for v1.9.5 release

Merge branch 'devel' for v1.9.4 release

Merge branch 'devel' for v1.9.3 release

Merge branch 'devel' for version 1.9.2 release

Merge branch 'devel' for 1.9.1 release

Merge branch 'devel' for 1.9.0 release