Issues with RickEyre's commit (cef08da1d6) -- Missing internal 'cue.h'

[Caitlin Potter]

I guess nobody caught this before landing, sorry I was a bit preoccupied with other work and didn't get a chance to do a proper review. Rick apparently did not commit the new internal cue.h, so there will be build issues until that gets added back in. I think it's better if we can get his original work into the tree asap, rather than having to put together a new version.

[Richard Eyre]

Just saw this, will start a new pull request.