Arguments to z must be ordered.

E.g. 'z foo bar' matches /foo/bar but not /bar/foo.
Merge branch 'master' into ordered_args
Merge branch 'master' into ordered_args
Don't need to do a substr cause we've removed leading space from $fnd
Merge branch 'master' into ordered_args
Merge branch 'master' into ordered_args
Merge pull request #132 from lge88/master

use command pwd instead of pwd. h/t Ige88
Merge branch 'master' into ordered_args
suppress error from tab completion when datafile not exists

h/t @juanpabloaj. Closes #136
Merge branch 'master' into ordered_args
Allow usage of z while in 'sudo -s' mode
Merge pull request #137 from dan-bolsun/z_owner

Allow usage of z while in 'sudo -s' mode
Document $_Z_OWNER
Merge branch 'master' into ordered_args
remove tab literal
Age a bit slower.