Ignoring stat file.
Merge ignored definitions.
Merge upstream.
Differentiate profiling and free run.
Merge branch 'ex' of github.com:eugeneai/paropt into ex

Conflicts:
	.gitignore
	paropt.py
Check the validity of the second task.
Merge branch 'master' of github.com:eugeneai/paropt

Conflicts:
	paropt.py