Correcting error #130 - changing @stop to @pause()

This appears to fix issue #130:
https://github.com/Differential/accounts-entry/issues/130

@stop is depreciated in iron-router 0.7.0 and going forward we should use @pause().  When @stop is used in the entrySignOut route, BlazeLayout throws the following error in the console (client side):

Exception from Deps recompute function: Error: BlazeLayout: Sorry, couldn't find a template named entrySignOut. Are you sure you defined it?

Replacing @stop with @pause seems to fix the issue.