new commands: include, case and fail; new emacs wt-mode for webtester files

ax_init_standard_project.m4

@@ -181,6 +181,8 @@ AC_DEFUN([AX_INIT_STANDARD_PROJECT], [
   _AM_SUBST_NOTMAKE([AUTHOR])
   DISTRO=$(lsb_release -sc 2>/dev/null || uname -s 2>/dev/null)
   AX_SUBST(DISTRO)
+  ARCH=$((@<:@@<:@ $(uname -sm) =~ 64 @:>@@:>@ && echo amd64) || (@<:@@<:@ $(uname -sm) =~ 'i?86' @:>@@:>@ && echo i386 || uname -sm))
+  AX_SUBST(ARCH)
   DISTRIBUTOR=$(lsb_release -si 2>/dev/null || uname -s 2>/dev/null)
   case "${DISTRIBUTOR// /-}" in
     (Ubuntu) UBUNTU=1; AX_SUBST(UBUNTU);;