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

- Patch #721436 by catch, chx, moshe weitzman: remove magical fairy saving of cruft from user_save().

- Patch #502190 by jhodgdon, stella, sun: hook implementation headers out of compliance with standards.

#192056 by effulgentsia, Dave Cohen, andypost, hswong3i, geodaniel, pwolanin, and dahacouk: Ensure user's raw login name is never output directly.

- Patch #601250 by Dave Reid, VeryMisunderstood: allow anonymous users to use personal contact forms.

- Patch #601016 by Dave Reid: remove contact_site_page() and contact_personal_page() and use the forms directly.

- Patch #597784 by Dave Reid: rename 'administer site-wide contact form' to 'administer contact forms'.

- Patch #118345 by sun | nedjo, pwolanin, webchick: DIE hook_user_form() + hook_user_register() DIE!

#497118 by chx, catch, pwolanin, JoshuaRogers, and Jacob Singh: Remove the function registry. While the hope was that this would result in improved performance for low-end hosts, it comes at the expense of critical development experience problems and less benefit than something like APC. Class registry remains intact to facilitate autoloading.

Of all the patches to accidentally commit without a message. :( Rolling back registry rip. Let's try that again.

- Patch #391412 by JamesAn et al: move contact form, post, and user settings below Site configuration.

- Patch #334283 by Damien Tournoud, andypost, Freso et al: add context to t() to help deal with ambigious strings (and improved the locale APIs a bit). Example: May is both a short month name as a long month name in English, but not necessarily in other languages.

#313213 by maartenvg, Gábor Hojtsy: Add a 'title' attribute for permissions to allow for localization of permission names