- Improvement: don't perform XSS checks for trusted users.  Trusted users
  are those that have the "bypass input data check" permission set.  Should
  address bug #2147.

- Improvement: simplified index.php and modules/admin.module.

- Bugfix: fixed broken links in bloggerapi documentation.  Patch by Chris
  Johnson.  Fixes bug #2030.

- Bugfix: fixed the date shown on a book module preview.  Reported as part
  of bug #2097.

- Bugfix: fixed broken URL in the book module documentation.