GafferCycles 0.6.1

Bugfix - missing ccl::Node symbol which caused a segfault when trying to import the GafferCycles module.

This bug was from Cycles not setting a value of 0 for its virtual destructor, but this only manifested in release builds not debug for some reason. I have made a patch for Blender here:
https://developer.blender.org/D5590