Revert "Update .gitmodules"
I'm not quite sure how to handle the .gitmodules file. I don't think it should be commited to git

This reverts commit 48251a3141f9f203ba6c8c73a6c9cff02836448c.
MacOS: fix up keychain sigining, increases the size of the virtual disk
Merge branch 'master' into aaf_auth
fixes in cvlsshutils submodule
Merge branch 'aaf_auth' of github.com:l1ll1/cvl-fabric-launcher into aaf_auth