removing RTIMULib, to re-add it as a proper git subtree
Squashed 'RTIMULib/' content from commit a36c9d2

git-subtree-dir: RTIMULib
git-subtree-split: a36c9d2b4521c542c88984e909d316ee50d8ce57
Merge commit '90f7619576bfd7696a689b02835d11eb09207fea' as 'RTIMULib'