Cast query result to int

Move remote_shares OCS endpoint to AppFramework

deleted files, fix mimetype detection

Else we never create the default address book

detect the correct mimetype of the files in the trashbin, therefore we have to check the filename without the appended timestamp

Don't print exception message in HTML

Filter more mimetypes

The exception message is potentially influenced by user input and could thus be confusing (e.g. somebody could try to open a file like "Please send a mail to support@foo.com", and then the message would include that string.

It is thus reasonable to not show the exception message by default. Also for the browser view I added an `exit()` at the end, as otherwise the XML exception would be attached.

There's no need to allow more than those defined mimetypes for images.

Adding a optional disclaimer to the anonymous upload page

more efficient querying of numeric storage ids

Catch the exception of the password policy app

Add exemptions for incompatible UAs

Some user agents are notorious and don't really properly follow HTTP
 specifications. For those, have an automated opt-out. Since the protection
for remote.php is applied in base.php as starting point we need to opt out
here.

Show an download button instead of the updater

Master supports PHP 7.1

[3rdparty] PasswordCompat is no longer required

Add PHP 7.1 drone tests

Fix detection of file types a bit

In php 7.1 the pretty print json output changed. Thus now we compare
arrays.

Bumps the PHP version from beta2 to RC1

* Set salt length to 0
  See https://tools.ietf.org/html/rfc3447#page-38
* Fix tests for new phpunit