(Glossary): Minor phrasing changes throughout.

(Glossary): Minor phrasing changes throughout.
Add more internal cross-references.
<Autoloading>: You can't really autoload a variable.
<C-M->: Move details here from `M-C-' item.
<Continuation Line>: Refer to `Truncation.'
<Daemon, Free Software, Free Software Foundation, FSF, GNU>:
<Home Directory, Unix>: New entries.
<Deletion of Files>: Mention recycle bins.
<Directory>: Mention ``folders.''
<Error>: Don't mention ``type-ahead.''
<Fringe>: Refer to the manual node.
<Minor Mode>: Can be global or local.
<Spell Checking>: There are other checkers besides Ispell.