Use ${PROJECT_NAME} rather than hard coding qgis.app when naming mac application bundle

git-svn-id: http://svn.osgeo.org/qgis/trunk@6433 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: timlinux

CMakeLists.txt

@@ -127,7 +127,7 @@ ELSE (WIN32)
 
   IF (APPLE)
     # for Mac OS X, everything is put inside an application bundle
-    SET (CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}/qgis.app/Contents/MacOS)
+    SET (CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}/${PROJECT_NAME}.app/Contents/MacOS)
     # path for library references
     SET (CMAKE_INSTALL_NAME_DIR @executable_path/lib)
   ENDIF (APPLE)