revert Joseph Eagar's eltopo commits r36073, 36075 (& some minor edits)

discussed with Janne, Ton, Nathan and we agreed this kind of change at least needs discussion with module owners.

Its also too close to release to be making these kinds of changes.

commands used:

  # reverse merge
  svn merge -r36073:36072 .
  # for some reason this gave a lot of property changes
  svn revert `svn st | grep "^ M" | awk '{print $2}'`
  # reverse merging didn't work here, removing while dir.
  svn rm extern/eltopo/


  # manually fixed conflict in
  # ./source/blenderplayer/CMakeLists.txt
  #
  # also manually removed 2 lines from
  # ./CMakeLists.txt

source/blenderplayer/CMakeLists.txt

@@ -128,10 +128,6 @@ endif()
 		bf_intern_mikktspace
 	)
 
-	if(WITH_ELTOPO)
-		list(APPEND BLENDER_SORTED_LIBS extern_eltopo)
-	endif()
-
 	if(WITH_BUILTIN_GLEW)
 		list(APPEND BLENDER_SORTED_LIBS extern_glew)
 	endif()