Tree fully implemented. Scobey saves the day.
Remove tree logging.
Nearly got piping working
Remove old code
Add fork in execute.c before piping
Fix errors from last commit, d'oh
Add meta info to gitignore
Fix piping test for child to parent.
Merge branch 'redirection' of github.com:Glavin001/MRShell into glavin

Conflicts:
	src/execute.c
Remove excess close
Change hardcoded piping to generic TWO command piping
Handle single commands and 1-to-1 piping