New files implementing an asynchronous cache.
Updated docs on example script
Fixed spelling error.  Removed unecessary code
Updated docs
Made changes in response to PR feedback
Use a more specific class for the caching client
Type 'callable' should include a string
Improve the method docs
HG-251 Add video duration to article JSON output
HG-251 Don't format time on back-end
(CE-1099) Fix additional calls of the ArticleDeleteComplete hook

The ArticleDeleteComplete hook was changed in MW 1.18 from using an
Article object as its first argument to using a WikiPage object. We
ran the hook in a few extra places, but did not update these hooks
when we upgraded from MW 1.16 to MW 1.19. When a correct type hint of
WikiPage was used recently in a method attached to this hook, it
started causing fatal errors.

This removes the custom 'ArticleDelete' and 'ArticleDeleteComplete'
hook calls as they are no longer needed. In MW 1.16, the hooks were
run from Article::doDelete not from Article::doDeleteArticle which
is what is used in these extensions. As such, the hooks were run
manually before and after calling Article::doDeleteArticle. However,
in MW 1.19, the hooks are run from WikiPage::doDeleteArticleReal
meaning that they are run anyway, and we've been running the hooks
twice per deletion in these extensions since the 1.19 upgrade.

Fixes the following fatal error:

PHP Catchable fatal error:  Argument 1 passed to
ApiHooks::onArticleDeleteComplete() must be an instance of WikiPage,
instance of Article given in includes/wikia/api/ApiHooks.class.php on
line 53.
Bucky: load config for all skins listed in wgBuckyEnabledSkins
Bucky: load in Monobook
Revert "ArticleComments / Wall: wrap Bucky calls in if statement"

This reverts commit 0c26a7a332b1baf5126548aa6c7778127124e58f.
Remove unused globals and error variable
Merge pull request #5198 from Wikia/HG-251

HG-251 Add video duration to article JSON output
Merge pull request #5219 from Wikia/CE-1099

(CE-1099) Fix additional calls of the ArticleDeleteComplete hook
Merge pull request #5224 from Wikia/platform-559-load-bucky-in-monobook

PLATFORM-559: load bucky in monobook
CON-1873: Fix for menu aim triangle on IE
MWEB-995 deleted workaround--PLATFORM-308 fixed it

Revert "P2 "fix"; Backported from release-239"
This reverts commit eb526c0e24387f9b2002acc90d684bf3a6897920.