Quickbook: Partial merge from trunk.

- Fixes to 1.6 lists, involving blocks in lists.
- Use anchors for links in documentation, and explicit section ids. Will make
  it easier to edits docs in future.
- Fix filesystem includes.


[SVN r77569]

tools/quickbook

@@ -1 +1 @@
-Subproject commit 821ed06ac589737b325a3aabda5f8ef2991e1763
+Subproject commit 3ba6e2bc0a6538021d25baa2a0a4d6ae70009806