only call shell_exec if enabled

Fixed sharing status update for new/uploaded files

new console command to generate sql migration scripts

fix undefined "shipped"

Creating new files, folders or uploading files now have their sharing
icon updated accordingly.

For this, the global share status list that is cached in
OC.Share.statuses is reused for new files.

Performance should improve as the sharing list is now only loaded once
per navigation session.

In OC.Share, split loadIcons into loadIcons + updateIcons.

Fixes #4977

Fixed upload permissions distinction between public and logged in upload

Updates ownCloud title to Application - ownCloud

PHP Code Coverage on windows master

use svg to generate filetype icon if imagick available

Fixes #5370

WebDAV depth infinity support - the dirty way

Public API documentation fixes

refs #4883

 * http/response.php
 * config.php
 * response.php
 * files.php
 * idbconnection.php
 * app.php
 * user.php
 * template.php
 * share.php
 * db.php
 * icache.php & il10n.php

only text/plain is now used to generate text previews

Fixed conflict dialog in IE8

Fixing appframework for OC6

Conflicts:
	lib/private/appframework/middleware/security/securitymiddleware.php
	tests/lib/appframework/middleware/security/SecurityMiddlewareTest.php

Get urlParams registered before Request is instantiated

Fixed drag and drop to subfolder and breadcrumb

file system is now initialized with apache authentication as well

try to fix unencrypted file size if it doesn't look plausible

added simple test for getFileSize proxy

avatars should also work with encryption after pr #5332 was merged

added another test, if unencrypted size and encrypted size are equal we can also assume that something is wrong