npm-registry-couchapp@2.5.3 for more reliable tests

For the record, this brings in:

* bee49ef views: Exclude deprecated packages from browse views (isaacs on 2014-08-28)
* 829051e views: browseAuthorRecent should only show publisher, not all maintainers (isaacs on 2014-08-28)
* 7413b90 add tests for registry views (isaacs on 2014-08-28)
* dacd57e request update (isaacs on 2014-09-08)
* 63d7dd7 Bump the timeout for couch to startup to five minutes (iarna on 2014-09-09)

Though this is just a dev dependency– the key change is the timeout increase which will stop spurious errors on "slower" laptops and in places like Travis.