Inserts any of the [WikiVariable]s.

----

!Usage

<wiki:Variable var="<variable name>" default="<default value>" />

!Parameters

;__var__: The name of the variable to insert.  Required.
;__default__: If the variable does not exist, then inserts this value.  Optional.

!Example
{{{
<wiki:Variable var="applicationname" />
}}}

inserts the "applicationname" [WikiVariable].