Issue #939880 by amateescu, marcingy: Fixed Poll Module throws PDOException when creating poll content.

Issue #1295546 by c31ck, marcingy, amateescu, xjm: Fixed Weight and number of votes not getting saved when updating a poll.

#915174 by sdboyer, sun: Remove pointless files[] declarations on files that are not declaring classes.

#601932 by David_Rothstein, carlos8f, yoroy, Bojhan, et al: Allow dashboard to limit available blocks.

- Patch #882694 by mgifford, sun, ksenzee, bleen18, yched: add missing form element titles for accessibility.

- Patch #757154 by sun, effulgentsia: base form_id() via hook_forms() not taken into account for #validate, #submit, hook_form_FORMID_alter().

- Patch #328357 by bleen18, sun, skilip, alanburke, jenlampton, manarth, fgm, tstoeckler: allow module .info files to add CSS/JS.

#761956 by David_Rothstein, Xen, sun, tstoeckler, Bojhan, zzolo, yoroy, jenlampton, linclark, BarisW: Fixed Dashboard blocks and regions should not appear on the main blocks configuration page.

- Patch #880132 by bojanz: hook_schema() doesn't support compound foreign keys; inconsistent implementations in core.

#500866 by boombatower, solotandem: Remove t() from assertion messages in SimpleTest, so translators do not get 1000s of bogus strings.

#817216 by ctmattice1, chx, Stevel, Damien Tournoud: Fixed system_update_7008 does not work, deal with invalid poll choices, and move poll-related upgrade logic to Poll module.

- Patch #735800 by effulgentsia, fago, Frando: node form triggers form level submit functions on button level submits, without validation. Oh yeah.

#331951 by aspilicious, sun, jhodgdon, Morbus, et al: Figure out and apply coding standard for casting.

- Patch #645800 by katbailey, effulgentsia, rfay: ajax_deliver() ignores #ajax['method'] and incorrectly forces 'replaceWith' for simple AJAX callbacks, D6->D7 regression.