configure script should not be in svn, but instead generated on release

configure.in modified to be more selective about finding bash
configure.in modified for 0.9.3 release
autogen.sh modified to create config.guess and config.sub for release
changelog updated about autoconf changes
Removed /bin/bash TODO line

ChangeLog

 version 0.9.3 -- unreleased
+    autotools fixes
     backupninja changes
         backupninja.conf
          . added (commented out) the various default paths to

TODO

@@ -5,9 +5,6 @@ you are working on it!
 . Fix all bugs reported on the Debian BTS:
   http://bugs.debian.org/cgi-bin/pkgreport.cgi?which=pkg&data=backupninja&archive=no
 
-. Figure out why configure decides to use /bin/sh for bash when
-  it shouldn't (Debian bug #346303)
-
 . Make ninjahelper allow you to pick what type of backup you want (instead
   of just assuming you want local-to-remote, or push backups. Some people
   want local-to-local, or remote-to-local, or pull backups). This has been

autogen.sh

@@ -13,5 +13,5 @@ fi
 #autoheader
 
 aclocal
-automake -a
+automake -a -c
 autoconf

configure.in

 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_INIT([backupninja],[0.9.2],[backupninja@lists.riseup.net])
+AC_INIT([backupninja],[0.9.3],[backupninja@lists.riseup.net])
 AC_CONFIG_SRCDIR([src/backupninja.in])
-#AC_CONFIG_HEADERS([config.sh])
 AM_INIT_AUTOMAKE
 
 # Checks for programs.
-AC_PATH_PROGS([BASH], [bash])
-#AC_PATH_PROGS([PERL], [perl])
 
-#AC_DEFINE([MYVERSION], [5.6])
-#AC_DEFINE_UNQUOTED([MYDIR], "${sysconfdir}")
-#AC_DEFINE([SYSCONFDIR], [$sysconfdir], [System config dir])
-AC_SUBST([CFGDIR], "${sysconfdir}")
-
-# Checks for libraries.
+# BASH may already be set in the shell, if the admin then changes the
+# the /bin/sh symlink to a non-bash shell, all hell will break lose.
+unset BASH
+AC_PATH_PROGS([BASH], [bash], [/bin/bash], [$PATH:/bin:/usr/bin:/usr/sbin])
+if test x$BASH = "x"; then
+    AC_MSG_ERROR([bash is required])
+fi
 
-# Checks for header files.
+AC_CHECK_PROGS(SED, sed)
+if test x$SED = "x"; then
+    AC_MSG_ERROR([sed is required])
+fi
 
-# Checks for typedefs, structures, and compiler characteristics.
+AC_CHECK_PROGS(AWK, awk)
+if test x$AWK = "x"; then
+    AC_MSG_ERROR([awk is required])
+fi
 
-# Checks for library functions.
+AC_SUBST([CFGDIR], "${sysconfdir}")
 
 AC_CONFIG_FILES([Makefile
                 etc/Makefile