#316868 by Crell: Make addField() alias to the field name, rather than the table and field name when there are no conflicts.

- Patch #304924 by Damien Tournoud: extend error handler to manage exceptions.  I have one exception and one fail.

#242873 follow-up by pwolanin: Move new check_plain() check constants to bootstrap.inc so they're there in early bootstrap.

- Patch #298309 by mfer: add PDO::FETCH_PROPS_LATE to tell __construct() to run before properties are added to the object.  This is closer to the expected behavior and avoids that values are being overwritten.

#308521 by chx: Fix a bunch of stray whitespace. And the trivial patch of the month award goes to... ;)

- Patch #208793 by kbahey, Damien Tournoud: stop hardcoding the HTTP protocol version where possible.

- Patch #64967 by Arancaytar, meba: ereg -> preg for performance reasons and future compatilbility.  PHP6 is rumoured to drop ereg support.

- Patch #225450 by Crell, chx, bjaspan, catch, swentel, recidive et al: next generation database layer for Drupal 7.