grim/guifications3

added a macro for adding tests to gflib.cmake (this will need to be made expandable later)
moved testing from ctest to part of the normal build
set(PIXMAPS
pidgin.png
)
foreach(PIXMAP ${PIXMAPS})
install(FILES ${PIXMAP} DESTINATION share/pixmaps/purple-guifications)
endforeach(PIXMAP)