Moved checking of verification key to an own method
Added drop.php

This script allows the user to drop own devices that aren't needed
anymore
Added more functions to drop.php
Included detection of address type and drop of device
Bugfix: Wrong parameter makes it impossible to drop a device

Added notification for user after a device has been dropped
Removed unnecessary protection if ini files in .htaccess

As the config isn't kept in ini files anymore, we don't need this
Merge pull request #23 from litzi0815/V-0.4.2

V 0.4.2