Additional sh tilde expansion tests
tilde.t:  Add \~ test for sh tilde expansion

Josh Juran <jjuran@metamage.com>:
	Thanks for all the tests.  As you know, this one wasn't passing when
	you submitted it, but now that "\~" is passed through without having
	the backslash elided by the outer shell, it works.
sh:  Factor out quoted_tilde_expansion()
sh:  Single-quote the tilde expansion

This prevents strings like "*" and "$foo" from getting further expanded.
Merge branch 'tilde-overexpansion-fix'
Merge pull request #3 from lewellyn/sh-tilde-moretests

* lewellyn/sh-tilde-moretests:
  Additional sh tilde expansion tests
Merge branch 'pull/lewellyn/sh-tilde-moretests'

Conflicts:
	relix/files/Developer/Tests/sh/tilde.t
tilde.t:  Add parameter overexpansion test