Some cleanup in App cmake files to make them smaller and more readable

src/OpenMesh/Apps/Subdivider/commandlineSubdivider/CMakeLists.txt

@@ -5,16 +5,14 @@ include_directories (
   ${CMAKE_CURRENT_SOURCE_DIR}
 )
 
-set (targetName commandlineSubdivider)
-
 # collect all header and source files
 set (sources
   ../subdivider.cc
 )
 
-acg_add_executable (${targetName} ${sources})
+acg_add_executable (commandlineSubdivider ${sources})
 
-target_link_libraries (${targetName}
+target_link_libraries (commandlineSubdivider
   OpenMeshCore
   OpenMeshTools
 )