Issue #2764131: Missing modules warning instructions don't make sense for certain situations (such as for old Drupal 6 module entries in the system table)

Issue #2762393 by stefan.r, MustangGB, David_Rothstein: Skip error triggering for missing files if the files are empty or "default"

Issue #1081266 by stefan.r, jeroen.b, mikeytown2, David_Rothstein, tsphethean, mfb, joseph.olstad, marcelovani, Kars-T, joelpittet, Fabianx, catch, fgm, das-peter, alexpott, emcniece, oriol_e9g, sun, corbacho, klausi, mgifford, onelittleant, Peter Bex, Spleshka, beejeebus, Berdir, pwaterz, SocialNicheGuru, sylus, Wim Leers, heyyo, joshtaylor, swentel, alanburke, dagmar, alexmoreno, kenorb, EvanSchisler, Mark Theunissen, bmateus, andypost, Lukas von Blarer, ChristophWeber, nicholas.alipaz, arosboro, askibinski, dawehner, DerekL, ExTexan: Avoid re-scanning module directory when a filename or a module is missing

Issue #1327728 by Darren Oh, Josh Waihi, cspitzlay, c960657: ip_address() fails when client request IP and proxy IP are the same

Issue #2676472 by micaelamenara, dagmar, jhodgdon: docs for t() and related functions don't explain how context works

Issue #412808 by Berdir, rupertj, beejeebus, sun, PieterDC, scottalan, catch: Handling of missing files and functions inside the registry

Drupal 7.44 (SA-CORE-2016-002) by alfaguru, benjy, nagba, David_Rothstein, larowlan, stefan.r, vlad.k, pwolanin

Drupal 7.43 (SA-CORE-2016-001) by agerard, Alan Evans, benjy, berdir, catch, Damien Tournoud, DamienMcKenna, Dave Cohen, Dave Reid, David_Rothstein, dsnopek, effulgentsia, FengWen, fgm, fnqgpc, greggles, Gábor Hojtsy, Juho Nurminen 2NS, klausi, larowlan, nagba, Pere Orga, plach, pwolanin, quicksketch, rickmanelius, scor, stefan.r, StryKaizer, YesCT

This reverts commit 2f54b101.

Issue #2622012 by walangitan, snehi, Shreya Shetty, rashid_786, joachim, jhodgdon: Fix documentation errors in language_default()

Issue #2530872 by orbmantell, TravisCarden: Improve documentation of drupal_get_schema() and drupal_get_schema_unprocessed()

Issue #1845104 by dcam, longwave, thehong, er.pushpinderrana, martin_q, David_Rothstein: drupal_set_message('0') results in no output rather than outputting "0"

Issue #462950 by pwolanin, Pere Orga: Mitigate the security risks that come from IE, Chrome and other browsers trying to sniff the mime type

Issue #2453321 by TravisCarden: Typo in @see reference: drupal_decode_exception() should be _drupal_decode_exception()

Issue #779482 by mikeytown2, sun, dalin, cam8001, segi, alexpott, Boobaa, Sweetchuck, jbrown, quicksketch: Installation failure when opcode cache is enabled

Issue #2381839 by klausi, Damien Tournoud: Changed date format for Last-Modified header breaks caching for certain Varnish/Nginx configurations.