Examples merged back with master

CMakeLists.txt

 if (VTK_SUPPORT)
-include_directories(${CMAKE_INSTALL_PREFIX}/include)
+	include_directories(${CMAKE_INSTALL_PREFIX}/include)
 
-include_directories( "${CMAKE_CURRENT_SOURCE_DIR}/include" )
-add_subdirectory("src")
+	include_directories( "${CMAKE_CURRENT_SOURCE_DIR}/include" )
+	add_subdirectory("src")
 
-add_library( fem4ellipticpde ${FEMSOURCE} )  
-target_link_libraries(fem4ellipticpde "lemmacore")
+	add_library( fem4ellipticpde ${FEMSOURCE} )  
+	target_link_libraries(fem4ellipticpde "lemmacore")
 
-install ( TARGETS fem4ellipticpde DESTINATION ${CMAKE_INSTALL_PREFIX}/lib )
+	install ( TARGETS fem4ellipticpde DESTINATION ${CMAKE_INSTALL_PREFIX}/lib )
 
-if (LEMMABUILDEXAMPLES)
-	add_subdirectory(examples)
-endif()
+	if (LEMMABUILDEXAMPLES)
+		add_subdirectory(examples)
+	endif()
+else()
+	message( STATUS "FEM4EllipticPDE requires Lemma to be build with VTK" )
 endif()