- Changed to namespace selx
- Combined componentbase classes and based it on itkLightObject
- Initial combination of example components
- Made templated ComponentFactory to replace all specific factories

Merge branch 'ELASTIX-43-Show-header-files-in-Visual-Studio' into ELASTIX-44-Unite-Interface-framework-with-Factory-framework

project

'ELASTIX-12-implement-componentdatabase' into develop

Conflicts:
	Modules/Core/elxModuleCore.cmake
	Testing/Unit/CMakeLists.txt

Conflicts:
	CMakeLists.txt
	Modules/Core/elxModuleCore.cmake
	SuperBuild/CMakeLists.txt
	Testing/Unit/CMakeLists.txt

Merge branch 'ELASTIX-24-Component-Interface-Handshake' of https://github.com/kaspermarstal/SuperElastix into ELASTIX-24-Component-Interface-Handshake

Conflicts:
	Modules/Core/ComponentInterface/GDOptimizer4thPartyComponent.cxx
	Modules/Core/ComponentInterface/Interfaces.hxx

The new Travis infrastructure supports a new version of CMake which is
required by some of SuperBuild dependencies.

Model the GoogleTest build after SimpleITK. This fixes previous build
errors.

casts for the handshape are put in the acceptor generalized.

The functionality lives outside of the elastix project and serves as
toy example / prototype, without being complicated by ITK compatibility.