call fb parse after fb is loaded

Had a quick check of the website and the issue was still there, after some messing around I realised that when the FB API is initialized it tries to parse the html but if jQuery hasn't loaded the HTML yet (in the case of the async forms) we have to call the parse again. 

If this doesn't work we'll have to call the parse after each jQuery.load which is not very tidy but would definitely fix it.