* INSTALL: Added documentation about --enable-carbon-app and

* INSTALL: Added documentation about --enable-carbon-app and
	changed documentation concerning Emacs.app location
	Removed some of the documentation about make-package that isn't
	needed
	Changed comment about requiring root permission to install to
	saying that it might be necessary depending on where you install
	Refered to /usr caveat in more places

	* make-package (make_options): Use new carbon_appdir option to
	specify directory to install Application and lets the makefile
	install