Fixed bugs #496752 and #496753.

http://sf.net/tracker/?func=detail&atid=100311&aid=496752&group_id=311
http://sf.net/tracker/?func=detail&atid=100311&aid=496753&group_id=311

config/conf.pl

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 # conf.pl
 # Luke Ehresman (luke@squirrelmail.org)
 #

configure

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Redirects to the config directory and runs conf.pl