form_comment_form_alter() implementation.

stress on sites with large numbers of blocks.

#531366 by mikeker: Move token substitutions to prior to filtering in custom content type. This could have some effects on existing installs.

Initial inclusion of the stylizer plugin to create user customizable styles from pre-configured base styles.

#686764: Update page tokens to use actual page rendering mechanism rather than the tokens which causes them to appear as having content even when empty.