only ghost if not already ghosted
squishing should happen off the ghost environment
test path squishing
interim progress on rm implementation for tracked_environments
add infix meta-environment assignment operator
Fix is.patch documentation
define tracked_environment universe
add a commit message TODO
Export all these things and more
Export tracked_environment S3 class as well
actually we cannot make rm a generic
test that regular environments dont break
Fix $ operator for tracked_environment
Remove this block
completely working tracked_environment diffing -- git for R
document new NAMESPACE
Update NEWS on tracked_environment
remove these old man pages
correct line numbers
start tests for tracked_environment diffing