Better unix filesystem integration as documented here

http://wiki.blender.org/index.php/BlenderDev/Blender2.5/Unix_FHS

for scons WITH_BF_FHS enabled an alternative layout eg.
scons WITH_BF_FHS=1 BF_INSTALLDIR="/usr/local"

for CMake just run "make install" after make (CMAKE_INSTALL_PREFIX is used for the base path)

Currently only scripts use both the system and user path correctly, other areas of blender have their own path code inline with lots of ifdefs, needs to be carefully updated.

CMakeLists.txt

@@ -51,6 +51,10 @@ PROJECT(Blender)
 SET(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/bin)
 SET(LIBRARY_OUTPUT_PATH  ${CMAKE_BINARY_DIR}/lib)
 
+# Note! - Could create this from the blender version string
+# ...but thats quite involved, make sure this matches the blender version.
+SET(BLENDER_VERSION  2.5)
+
 #-----------------------------------------------------------------------------
 # Set default config options
 OPTION(WITH_PLAYER        "Build Player" OFF)