upload abortion detection only for PUT

Load all mimetypes in one go

Design fixes

e.g. LOCK would break with this approach

Input simplify

Improved request

OCS Share API

add previews to versions dialog

Added dateOnly argument to relative_modified_date

Fixed array syntax to work with PHP 5.3

Replace plus sign with space in files app URL #4932

It seems that array brackets are only supported starting with PHP 5.4.
Fixed the array brackets to be compatible and not cause a syntax error
in PHP 5.3.

DAV: Use fileinfo_cache for ETag

send mail notification if a file was shared to a user/group

Conflicts:
	apps/files/index.php
	apps/files/templates/index.php

Merge branch 'sharing_mail_notification_master' of github.com:owncloud/core into sharing_mail_notification_master

Conflicts:
	core/ajax/share.php

make it possible to prepopulate a new user home with a skeleton

LDAP modularization and tests

Encryption improved error messages

let user repeat the recovery key password to prevent typos

The message for invalid private key was too long and didn't fit in the
notification box. This fix reduces the message to fit properly by
removing the extra information.