Give unique names to the targets created by KDocToolsMacros.cmake

Review Request #116650 - Created March 7, 2014 and submitted - Latest diff uploaded

Aleix Pol Gonzalez
buildsystem, kdeframeworks
While porting the documentation in kde-runtime I realized there was an error because when running cmake it would try to create different targets and some of them would have the same name (e.g. there is kcm/bookmarks and kio/bookmarks, and it uses the directory name to figure out the filename).

I would have fixed that, but then I realised it was not running any command and nothing depended on it. Am I missing something?
Now kde-runtime documentation builds.