Move images from qtassistant directory to Sphinx source directory.

Refs #9562

Code/Mantid/docs/qtassistant/CMakeLists.txt

@@ -77,7 +77,7 @@ find_program ( DVIPNG_EXE dvipng )
          Wav_Q_bins.png
        )
    #message ( "QTASSISTANT_IMAGES ${IMAGES}")
-   copy_python_files_to_dir("${IMAGES}" "${CMAKE_CURRENT_SOURCE_DIR}/images" ${HELP_HTML_IMG_DIR} INSTALL_IMAGES)
+   copy_python_files_to_dir("${IMAGES}" "${CMAKE_CURRENT_SOURCE_DIR}/../source/images" ${HELP_HTML_IMG_DIR} INSTALL_IMAGES)
 
    # copy the other generic stuff
    add_custom_command( OUTPUT ${HELP_IMG_DIR}/Mantid_Logo_Transparent.png