cpptools: remove needless classes

* cpp::Binder: obsolete since widespread use of C++11
* cpp::Functor: though this is clever technique, it is flawed with Visual C++ (see http://blogs.msdn.com/b/oldnewthing/archive/2004/02/09/70002.aspx)
* cpp::Identifier: completely useless
cpptools: fix minor code style issue in cpp::circularAdvance()
qttools_core: put class PluginsLoader_InstanceIFaceFilter_Helper into namespace qttools::internal
qttools_core: add tools for QAtomicPointer (also add doc)
qttools_gui: add doc to StrictStackWidget
occtools: fix minor doc issues in occ_AIS_Text
occtools: use existing OCC types for text aspect
Merge branch 'master' of github.com:fougsys/fougtools