Converted to README to markdown
pwd wasn't printing out
#read_env doesn't directly call #pwd (and print)
Fixed use of read_env: added _env and _pwd for non-command like use.
Commented out git repo stuff.

This should be added later as part of a plugin type dealio.
Removed force_type option to .create.
Added another cheater
Fixed intializer for when local FS
Strip the path on init
Use one-liner block
Fixed #contents to return nil if file doesn't exist and nothing in-memory
Handle #last_* when there's no command history
#cd should do cd, not cat!
Only store @internal_pwd as a string
Fixed broken spec
Fixed exit status code on cat failure
Big update
More todo