- added file name check for the put, rename and setNames() methods which
  throw a "Bad Request" whenever invalid characters are used
- replaced \OC\Filesystem usage with $this->getFS() to be able to write
  unit tests

- added PHP utility function to check for file name validity
- fixes issue where a user can create a file called ".." from the files UI
- added extra checks to make sure newfile.php and newfolder.php also
  check for invalid characters

User migration fix, and basic unit test

Some style fixes

Now using PHP session lifetime as default value for the JS config

add cbr/cbz file type icon, fix #6953

This will fix the heartbeat when the session_lifetime config parameter
hasn't been set explicitly.

small change for compatibility

use file icon as fallback instead of application icon, fix #7237

Fit shared videos to viewer, just like images. Issue #1648

Use the proper content-type

LDAP: improve wizard strings, fixes #5567

We should use the proper content-type `application/xml` instead of the default `text/html` here.

Backport requested.

Do not select input for all text input fields

Issue template enhancements

[encryption] improved error handling

Add the background job list to the public server container

Remove the JsonSerializable interface from \OC\Files\FileInfo

Remove duplicate call to groupExists

fileinfo is no longer a array

Add a FileInfo class which holds all info of a file ...

don't urldecode get var, php does this automatically