RC changes.

* Install command functionality moved to install.sh.
* Directory for storing websites is now configurable.
* MySQL access permission now taken from configuration file from user
 directory. Connection to MySQL is now simplified - you don't need to
 specify access credentials in console, just type `mysql`, when logged
 in you will get a nice hint about host and current database in use.
	modified:   app/webdevhelper.php
	modified:   install.sh
	modified:   src/RoSk0/WDH/Command/CreateCommand.php
	deleted:    src/RoSk0/WDH/Command/InstallCommand.php