#349671 by Damien Tournoud and Josh Waihi: Make the PostgreSQL driver independent of schema to fix D6 => D7 update.

- Patch #296584 by mr.baileys: fixed incorrect example with regards to the use of t() in menu item titles.

- Patch #382096 by Arancaytar: improve the form limits so that they actually make sense and don't get in the way of SQLite support.

#330983 follow-up by David Rothenstein: Move rename function later in the process to un-break D6->D7 upgrade path.

#330983 by recidive and boombatower: Rename users/users_roles tables to user/user_role for consistency.

#373763 by Dave Reid: Fix bug in field_sql_storage_schema() that prevents SimpleTest from clearing tables.

#371231 by JohnAlbin and EclipseGC: Rename clear-block CSS class to clearfix, which is the lingo that designers use for it.

#125030 by kkaefer, quicksketch, dvessel, Steven, and John Resig: Allow compatibility with other JavaScript libraries.

#135976 by Dave Reid: Move Administration Theme setting to the themes page where it is findable (with tests).

#355496 by geodaniel, Dave Reid: Always list available databases, with explanation when only one is in the list.

- Patch #298722 by pwolanin: _menu_translate returns FALSE before to_arg is available.  Drupal.org upgrade blocker.