* Converts filter.module to the fapi model (besides filter_admin_overview which has already been done.)
    * On the format edit screen, updates to the roles fieldset were being mangled with the previous code. The previous code relied on only checked checkboxes being returned. Fapi for some reason decides to insert non-checked items as well with values 0.
    * Makes the name field a UNIQUE field. DB and update patches included. Having a duplicate format name completely b0rks things.
    * Adds check_plain to the format name in admin_overview.
    * Removes unnecessary #type => 'markup'.
    * Moves hook_menu to below hook_help.
    * drupal_goto -> return.

    * Converts the block administration page to the fapi model.
    * Removes some 'type=markup' elements.
    * Adds a form_render($form['form_id']); in the theme function. Adding a form_render($form) just outputs an unthemed form. I suspect this is because of the heavy nesting of form elements and the rather dodgy array declaration, but I'm unsure.
    * Documentation/language fixes.

- Patch #46746 by Matt: fixed inconsistent encoding of path aliases.  Fixes broken URLs on profile pages.

- Patch #50821 by Zen/merlinofchaos: convert book.module to form API so the forms can be altered/themed.

- Patch #51871 by merlinofchaos/zen: convert taxonomy.module to new form API so forms can be themed/altered properly.