[2.0] Thumbnailer component: container option

[simivar]

Allows you to specify a container of thumb generated by Thumbnailer component by providing container option.

Example:

this.initComponent('Thumbnailer', { 
    width: 250, 
    height: 250, 
    container: $('#preview250') 
});

[qosmio]

Just started reviewing :)

Sent from GH.