Issue #1295502 by pillarsdotnet: Fixed Add missing '$' character to docblock for timer_start(), timer_read(), and timer_stop() functions.

Issue #1113588 by pillarsdotnet: Added Provide find_conf_path() function by re-factoring reusable code from existing conf_path() function.

- Patch #76824 by geerlingguy, xjm, droplet, kbahey: Drupal should not handle 404 for certain files. Oh yeah.

- Patch #81461 by catch, pillarsdotnet, beejeebus: clean up the cache API (stop overloading function arguments, remove procedural wrappers).

- Patch #402896 by berdir, catch, andypost, dmitrig01, chx, pounard, sun, sdboyer: introduce DrupalCacheArray and use it for drupal_get_schema().

Issue #348448 follow-up by jrchamp, catch: Fix E_STRICT errors and set Drupal 8's default error reporting to E_STRICT to prevent further regressions.

Issue #1136130 by pillarsdotnet: Reinstated WATCHDOG_* constants; using PHP equivalents caused issues on Windows.

- Patch #804864 by fabsor, pwolanin, catch, c960657: external page caching does only work when 'page_cache_invoke_hooks()' is set to FALSE. (Old 'Aggressive Mode' is on).

- Patch #1099396 by Désiré, droplet, plach: language_count() is never decremented when removing a language.

- Patch #711650 by marcvangend, cha0s: when index.php appears in the URL (or is automatically added by the server) users get a 'page not found' message.