Replace <term><command><arg> with <term><property><parameter> to describe

options in the config file because:
 * <arg> can only be used within <cmdsynopsis>.
 * <cmdsynopsis> does not allow text outside <command> and <arg>.
 * <arg> does not allow decorating elements like <literal> or <emphasis>.
This fixes #2803057.

Add shortcut entities for commonly used parameters (yes/no, size).
Remove Debian patch which is obsoleted by above changes.

docs/lcdproc-user/Makefile.am

@@ -11,6 +11,7 @@ EXTRA_DIST =	bookinfo.docbook \
 		introduction.docbook \
 		lcdproc-user.docbook \
 		license.docbook \
+		parameters.ent \
 		running.docbook \
 		README.docbook