remove tcsh globbing in history search

<a href="http://www.tcsh.org/">
  <img class="right" src="tcsh_oystercatcher.jpg" /></a>

_This patch was
[applied on 8/23/2006](http://mx.gw.com/pipermail/tcsh/2006-August/003726.html).
It's included in tcsh versions 6.14.06 and later._

For the impatient:  
[Patch](tcsh-no-glob-search.patch)
for [tcsh 6.14.00](http://www.tcsh.org/MostRecentRelease)

I use [tcsh](http://www.tcsh.org/) as my shell, and I love it. Unfortunately,
globbing breaks its history search commands. They halfway support [...] and *
(character sets and wildcards), but they die on {...} and ^ (expansions and
negations).

Specifically, if you use { in a history search pattern, the search is killed and
prints _Missing }_. If you use ^ in a history search pattern, it treats it as a
normal character (ie doesn't glob), but ignores everything after it.

The affected commands include history-search-backward, history-search-forward,
i-search-back, and i-search-fwd.

After [discussing on the tcsh
list](http://mx.gw.com/pipermail/tcsh/2006-January/003535.html), we decided to
remove glob support in history search altogether. It's a rare use case, and we
believe it's more confusing than useful.

[This patch](tcsh-no-glob-search.patch) against [tcsh
6.14.00](http://www.tcsh.org/MostRecentRelease) removes globbing support and
fixes the bugs.