RE: Add some aliases for re-related functions

[Drew Adams]

> > (No, it's not always the case: `ange-ftp-re-read-dir',
> > `message-strip-subject-re'.  But some functions that
> > use `re-' are anyway misnamed - should be
> > `ange-ftp-reread-dir', for example.)
> 
> I doubt that ange-ftp-* functions are used outside ange-ftp.el these
> days. We shouldn't be too extreme, and change such function names.

Definitely.  100%.