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
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