Merge pull request #96 from mantidproject/bugfix/10745_win_debug_python_tests

Fix Python tests in debug mode under Windows & ctest.
Add jsoncpp as a dependency on Linux packages.

Refs #10821
Merge branch 'bugfix/10821_linux_pkd_depends_missing_jsoncpp' into develop

Conflicts:
	Code/Mantid/CMakeLists.txt