Revert the change of example.C on the location of the date file.
Fix location of example.root (match output of prepareHistFactory); use it.
Fix a tutorial when used as a test
Installation of prepareHistFactory. Fixed the logic in selecting what needs to be executed as test having precedence the target names. Avoid  include ${ROOT_USE_FILE} in tests.
Add gviz tutorial to ctest
Fix fft tutorial in cdash
Set the environment when running the tutorials in CDash.
TObjArray improvements/fixes
add more pre-defined dispatchers
Specify the name of the rootpcm correctly in presence of interpreter

only dictionaries.
Fix tutorials
Fix multi dim fit tutorial for cling
Value extraction checking for deleted copy ctor (ROOT-6385).

During the value extraction the copy constructor availability check must ensure the copy ctor was not deleted.