Merge pull request numbbo#1992 from numbbo/development

merge Development into Master for 2.4 release

Merge pull request numbbo#1945 from numbbo/development

Merge into master branch for 2.3.3 release

Merge pull request numbbo#1938 from numbbo/development

Merge of development branch into master for release 2.3.2

Merge pull request numbbo#1888 from numbbo/development

Merge development into master for release 2.3.1

Merge pull request numbbo#1863 from numbbo/release-2.3

merge development into master for release 2.3

Merge pull request numbbo#1833 from numbbo/release-2.2.2

merge of development branch into master

Merge pull request numbbo#1727 from numbbo/development

Merge from development to master before release

Merge pull request numbbo#1722 from numbbo/development

removed LaTeX compilation from postprocessing tests to do clean release

Merge pull request numbbo#1639 from nikohansen/master-fix-mpl

trying to fix incompatibility with matplotlib version 2.0.2 -> 2.1 and numpy >= 1.12 numbbo#1297

Merge pull request numbbo#1352 from numbbo/development

merge development with master before release 2.1