Don't include "class_list" from same directory.
Fixed some documentation warnings
Merge pull request #2565 from tklein23/minor_include_change

Don't include "class_list" from same directory
Fix memory leak in StringFeatures
CID 26248, 26247, 26246, 26241, 26239, 26236, 26235, 26236, 26234
Refactor CPack [ci skip]
Fix ViennaCL detection [ci skip]
Don't hardcode list of libshogun examples (instead use file glob feature of cmake).
Removing working directory imports.

Needed for having more build directories from same checkout directory
(not fully done yet).
remove vw
Coverity 26507: Uninitialized scalar field