Fixes for https://github.com/splendido/meteor-accounts-templates-semantic-ui/issues/1

This should fix https://github.com/splendido/meteor-accounts-templates-semantic-ui/issues/1

There were a few things to be reviewed.

 * AccountsTemplates configuration should be included both on client and server ( see [here](https://github.com/splendido/accounts-templates-core#package-configuration) )
 * the use path '*' to catch up undefined routes with server-side iron-router mappings (https://github.com/kevohagan/meteor-boilerplate/blob/master/routes.coffee) requires that all other routes were already defined (server-side) before it: routes defined client-side only are hence hidden by this 'catch them all'
 * since https://github.com/kevohagan/meteor-boilerplate/blob/master/client/helpers/router.coffee#L27 is under the client folder, weird things happened, causing weird dead loops while loading pages (would need better investigation...)
 * accounts-templates-core used to define only client-side routings (now fixed in master branch with f8ec26f6141928d190c399c683accd87054a1388)

Hope this help!