Issue #1146234 by David_Rothstein, Tor Arne Thune, xjm: Fixed Overlay redirect does not include query string.

- Patch #1153122 by Mac_Weber, tim.plunkett: Fixed padding to make Save button in admin page more visible.

- Patch #1174686 by ksenzee: overlay parent improperly opens child overlay on specific external links.

Issue #936686 by David_Rothstein, Einewton: Fixed 'Installation failed' errors when installing modules from Update Manager w/ Overlay.

Issue #961584 by james.elliott, mgifford, ximo: Fixed 'Skip to main content' link doesn't work in Overlay for Bartik or Stark.

Issue #996240 by David_Rothstein: Fixed Javascript error in node preview when there are unlimited value fields in overlay.

- Patch #759844 by jpmckinney, dixon_, plach, ksenzee, fabsor, pillarsdotnet: overlay does not work with prefixed URL paths.

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

#599706 follow-up by JohnAlbin, sun: Regression: Restore consistency to theme_menu_local_tasks() theme function

- Patch #896364 by frega, effulgentsia, Jacine, sun, David_Rothstein, Jeff Burnz, james.elliott, casey, mgifford: screen reader users and some keyboard only users need a clear, quick way to disable the overlay.

- Patch #841184 by ksenzee, aaronbauman, aspilicious: 'Skip to main content' link doesn't work correctly in the overlay.

- Patch #716612 by Everett Zufelt, casey: another step twoards making the overlay (more) accessible to screen reader users.

- Patch #883092 by Everett Zufelt, mgifford, Jacine: add heading before local tasks for screen-reader users.

- Patch #667012 by ksenzee, casey, David_Rothstein: remove the opening of external links in a new browser window.

- Patch #843272 by David_Rothstein: overlay does a bunch of unnecessary form redirect handling in JavaScript.

#655416 by casey, yoroy, BTMash, Bojhan, Gábor Hojtsy, sun, ksenzee, oseldman, jrguitar21, et al: 'Demonstrate block preview' should not open in the overlay, and should reflect the regions in the front-end theme.

- Patch #663126 by casey, ksenzee, seutje: active items in top level IA don't have the light gray background when overlay is enabled.

- Patch #659480 by mgifford, David_Rothstein, aaronbauman, Jody Lynn, casey, cwgordon7: added per-user setting for the overlay.

- Patch #841410 by David_Rothstein: field UI JavaScript is broken after validation fails due to an error in toolbar.js.

- Patch #667012 by ksenzee, casey: remove (or fix) the opening of external links in a new browser window.

- Patch #762348 by tstoeckler, BarisW, casey: update the document title using jQuery while using the overlay window.

- Patch #615138 by quicksketch, ksenzee, casey: overlay uses () global, but it doesn't exist anymore.