Update docs/manual/en-US/chapters/packages/data.md
Merge pull request #1788 from elinw/patch-13

Fix typos
Add missing argument to JAccess::checkGroup in rules.php
avoid include_once when we are sure the class doesn't exist
"Content-Disposition" is stored directly in the headers array

Since the function now uses "JHttpFactory::getHttp()" instead of "stream_get_meta_data", the "Content-Dispositon" data is now stored directly in the $response->headers['Content-Disposition'] instead of $response->headers['wrapper_data']['Content-Disposition'].

Currently in Joomla 3.0.2, you can't install extensions directly from an URL if the URL points to a dynamic created link (like in Akeeba Release System or CTransifex). This is because it doesn't detect a valid filename.
This commit fixes this.
Update composer vendor-dir and bin-dir to match JPlatform locations of libraries and bin
Fix a problem where using a non-string value for path caused all files to be deleted.
Add JFeed chapter to manual
Merge pull request #1792 from elinw/rules

Add missing argument to JAccess::checkGroup in rules.php
Merge pull request #1806 from elinw/feeds

Add JFeed chapter to manual
Merge pull request #1798 from elinw/jfolderdelete

Fix a problem where using a non-string value for path caused all files t...
Merge pull request #1794 from florianv/once

Avoid include_once when we are sure the class doesn't exist
Merge pull request #1796 from dongilbert/composer

Update to composer.json
Use 'load_language' property as a flag to load the language files so that the constructor doesn't need to be overridden for this purpose.
Use camel case
Change to 'autoloadLanguage'
Merge pull request #1813 from elkuku/github-users

Add JGithubUsers
Merge pull request #1814 from elkuku/github-users

Fix unit tests for JGithubUsers (Ref #1813)
Merge pull request #1812 from elkuku/github-oauth

Add token based authentication to JGithub
Merge pull request #1734 from okonomiyaki3000/JPlugin-load_language

Use 'load_language' property as a flag to load the language files