Merge changes from svn/asterisk/team/russell/LaTeX_docs.

* Convert most of the doc directory into a single LaTeX formatted document
  so that we can generate a PDF, HTML, or other formats from this
  information.
* Add a CLI command to dump the application documentation into LaTeX format
  which will only be include if the configure script is run with 
  --enable-dev-mode.
* The PDF turned out to be close to 1 MB, so it is not included.  However, you
  can simply run "make asterisk.pdf" to generate it yourself.  We may include
  it in release tarballs or have automatically generated ones on the web site,
  but that has yet to be decided.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@58931 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configure

@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 57556 .
+# From configure.ac Revision: 58320 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.60.
 #
@@ -692,6 +692,7 @@ LN
 DOT
 STRIP
 WGET
+RUBBER
 FETCH
 DOWNLOAD
 acx_pthread_config
@@ -7401,6 +7402,47 @@ echo "${ECHO_T}no" >&6; }
 fi
 
 
+# Extract the first word of "rubber", so it can be a program name with args.
+set dummy rubber; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_path_RUBBER+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  case $RUBBER in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_RUBBER="$RUBBER" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_path_RUBBER="$as_dir/$ac_word$ac_exec_ext"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_RUBBER" && ac_cv_path_RUBBER=":"
+  ;;
+esac
+fi
+RUBBER=$ac_cv_path_RUBBER
+if test -n "$RUBBER"; then
+  { echo "$as_me:$LINENO: result: $RUBBER" >&5
+echo "${ECHO_T}$RUBBER" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
 if test "${WGET}" != ":" ; then
   DOWNLOAD=${WGET}
 else
@@ -34661,13 +34703,13 @@ LN!$LN$ac_delim
 DOT!$DOT$ac_delim
 STRIP!$STRIP$ac_delim
 WGET!$WGET$ac_delim
+RUBBER!$RUBBER$ac_delim
 FETCH!$FETCH$ac_delim
 DOWNLOAD!$DOWNLOAD$ac_delim
 acx_pthread_config!$acx_pthread_config$ac_delim
 PTHREAD_CC!$PTHREAD_CC$ac_delim
 PTHREAD_LIBS!$PTHREAD_LIBS$ac_delim
 PTHREAD_CFLAGS!$PTHREAD_CFLAGS$ac_delim
-AST_DEVMODE!$AST_DEVMODE$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -34709,6 +34751,7 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+AST_DEVMODE!$AST_DEVMODE$ac_delim
 ALSA_LIB!$ALSA_LIB$ac_delim
 ALSA_INCLUDE!$ALSA_INCLUDE$ac_delim
 ALSA_DIR!$ALSA_DIR$ac_delim
@@ -34805,7 +34848,6 @@ QT_LIB!$QT_LIB$ac_delim
 QT_INCLUDE!$QT_INCLUDE$ac_delim
 QT_DIR!$QT_DIR$ac_delim
 PBX_QT!$PBX_QT$ac_delim
-RADIUS_LIB!$RADIUS_LIB$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -34847,6 +34889,7 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+RADIUS_LIB!$RADIUS_LIB$ac_delim
 RADIUS_INCLUDE!$RADIUS_INCLUDE$ac_delim
 RADIUS_DIR!$RADIUS_DIR$ac_delim
 PBX_RADIUS!$PBX_RADIUS$ac_delim
@@ -34932,7 +34975,7 @@ CURL_CONFIG!$CURL_CONFIG$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 83; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 84; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5