Don't show 'Initializing' for custom start views

Yeah we could remove this as the webpay-served page itself shows a throbber with "Loading". This just helped us know that the app is firing up. I think the next  step would be to have webpay serve customised strings for those views that need it. 

Mostly views do show their own throbbers when needed. But, things seem to happen so fast that in some cases view specific throbbers aren't useful. E.g. "success" which renders a throbber but then calls paySuccess so quick you never see the throbber.