All Load() methods that return a std::vector<mitk::BaseData::Pointer> could get a templated twin method that returns the typed smart pointer of the first element. In 99% of all cases, Load() returns a vector of a single element anyways and code readability would be a lot better with the templated versions:

mitk::Image::Pointer image = dynamic_cast<mitk::Image*>(mitk::IOUtils::Load("...").at(0).GetPointer());

auto image = mitk::IOUtils::Load<mitk::Image>("...");

Also, after the deprecated LoadImage(), LoadSurface(), and LoadPointSet() were removed, new overloads were accidentally added. These overloads (which actually aren't overloads as they are the only methods with their name) should be removed again. This happened after the last release and hence we can spare the deprecation process.

Pushed new branch T24545-TemplatedLoadInIOUtil.

I replaced dynamic_cast<(.+)\*>\(mitk::IOUtil::Load\((.+)\)(?:\[0\]|\.at\(0\)|\.front\(\))\.GetPointer\(\)\s*\) with mitk::IOUtil::Load<$1>\($2\) in all .h and .cpp files.

Pushed new branch T24545-Fixes.