Dots in a filenames fix
Fixed problems with a dots in a filenames
Update mapper.php

Now slugify is performed on whole filename (including extension). Changed method of adding index number (using regular expressions pathinfo() method removed).
Update mapper.php
make sure that only one process can enter the migration mode
use constants for different migration status
use number of manipulated rows as idicator if it was possible to enter the migration mode
remove App management top bar and move buttons more contextually in the interface
adapt test to the code changes
apps management: change misleading + to ...
[tx-robot] updated from transifex
fix typo in var name
add comment to explain the helper function
Merge pull request #3677 from owncloud/apps-buttons

remove App management top bar and move buttons more contextually in the interface
Merge pull request #3668 from owncloud/encryption_migrate_only_once

make sure that only one process can enter the migration mode
Merge pull request #3640 from infoneo/master

Folders with multiple periods problem fix
Merge branch 'master' into files_encryption_upgrade_fix