Rename localhost:4985 to myhost:4985 in TestDocumentChangeReplicate (#3639)
Rename localhost:4985 to myhost:4985 in TestDocumentChangeReplicate (#3639)

This allows the unit tests to run correctly, even when Sync Gateway
is running on port 4984/4985. Previously the tests would fail due to
side-effects of tests calling out to a running SG instance.
ceejatec/sync_gateway,ceejatec/sync_gateway,ceejatec/sync_gateway,couchbaselabs/sync_gateway,couchbaselabs/sync_gateway,ceejatec/sync_gateway,couchbaselabs/sync_gateway,couchbaselabs/sync_gateway