path as taken as relative to the
directory of the currently executing component.  For example: if the
currently executing component is /foo/bar/baz.comp calling 
AE.Component.rectifyRelativeName('.')
/foo/bar/ and
AE.Component.rectifyRelativeName('doofus')
/foo/bar/doofus and
AE.Component.rectifyRelativeName('/absolute/path')
/absolute/path.