this adds a subclass of Ext.form.field.Number with the settings for
Integers (allowDecimals: false and allowExponential: false and default
step size 1)
and use it where we only accept integers
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
this is ExtJS recommended practise, follows most of our
conventions and is necessary for querying
components with Ext.ComponentQuery.query() without escaping the
dots in the component widget name.