simplified toolset for better maintainability.

    o removed get-quickbook-command mammoth
    o 'using quickbook ;' is no longer required (import suffices)


[SVN r27675]

tools/build

@@ -1 +1 @@
-Subproject commit c385d415ff1b0a34a06bc13ea07e7daf011f64dc
+Subproject commit 122209a3de68d7748a30c32a90c3d282cc2b2cb7