@ModuleOption("variable bindings as a comma delimited string of name-value pairs, e.g., 'foo=bar,baz=car'")
	public void setVariables(String variables) {
		this.variables = variables;
	}
A standard mixin for modules that do some transformation based on a script.
Provides the following options:
<ul>
    <li>script</li>
    <li>propertiesLocation</li>
    <li>variables</li>
</ul>

@author David Turanski
@author Gary Russell
spring-xd-module-spi/src/main/java/org/springframework/xd/module/options/mixins/ScriptMixin.java