add new chapter about driver API; fix a few errors in the other dobbooks

docs/lcdproc-dev/lcdproc-dev.docbook

@@ -5,6 +5,7 @@
   <!ENTITY introduction SYSTEM "introduction.docbook">
   <!ENTITY shared-files SYSTEM "shared-files.docbook">
   <!ENTITY language SYSTEM "language.docbook">
+  <!ENTITY driver-api SYSTEM "driver-api.docbook">
   <!ENTITY make-driver SYSTEM "make-driver.docbook">
   <!ENTITY add-your-driver SYSTEM "add-your-driver.docbook">
   <!ENTITY license SYSTEM "license.docbook">  
@@ -17,8 +18,9 @@
 &introduction;
 &shared-files;
 &language;
-&make-driver;
+&driver-api;
 &add-your-driver;
+&make-driver;
 &license;
 
 </book>