Merge branch 'md' into 'master'

Md

See merge request !39
11 jobs for master in 4 minutes (queued for 1 second)
Status Job ID Name Coverage
  Test
passed clang-c++11 #58997
Linux

00:03:38

passed cppcheck #58999
Linux

00:00:24

passed doc #59006
Linux

00:00:20

passed gcc-c++11 #58996
Linux

00:03:59

passed macos-c++11 #58998
Apple

00:02:54

passed VS2013-32-bit #59005
VS2013

00:01:00

passed VS2013-64-bit #59004
VS2013

00:01:00

passed VS2015-32-bit #59003
VS2015

00:01:14

passed VS2015-64-bit #59002
VS2015

00:01:21

passed VS2017-32-bit #59001
VS2017

00:01:16

passed VS2017-64-bit #59000
VS2015

00:01:58