HTTP DELETE fix for Sencha Touch 2.1

ext-define.coffee

Ext.define "MyApp.data.Connection",
    override: "Ext.data.Connection"

    setOptions: ->
        options = @callParent arguments
        if options.method is "DELETE"
            options.data = null
        options

ext-override-deprecated.coffee

Ext.override Ext.data.Connection,

    setOptions: ->
        options = @callOverridden arguments
        if options.method is "DELETE"
            options.data = null
        options