Change visibility of scanner internals

so that descendant classes can access them.

remove legacy OC_Filesystem being used in a hook callback

add title property to share dialog will close #8638

fix warning text and margin. fixes #8715

fix grammar

Implement the register function of OC\ContactsManager

forgotten infobox messages translations

reverts 188c5435

App info new fields "requiremin" and "requiremax" 

don't lose file size during rename

unwrapped strings fix

Also added a few missing authors.

Apps can now specify a minimum and maximum version of ownCloud in which
they are supported.

allow resharing of files with only share permissions

Make the recursive delete more robust

Add a config option for setting the filesystem watcher policy

make user_ldap fully translatable

fix typo

Suggested by [mnestis](https://www.transifex.com/accounts/profile/mnestis/) on transifex

Show less whitespace above publicly shared images

fix share label creation