Return descriptive error on attempt to query views of non-healthy bucket
Return descriptive error on attempt to query views of non-healthy bucket

Just incorporating a new go-couchbase revision:
"If the CouchAPIBase property is missing, it's probably because the
bucket isn't in a healthy state, so report the state in the error."
For #147.

paulharter/sync_gateway,tophatch/sync_gateway,tleyden/sync_gateway,tophatch/sync_gateway,couchbaselabs/sync_gateway,ceejatec/sync_gateway,evankyle/sync_gateway,tleyden/sync_gateway,evankyle/sync_gateway,couchbaselabs/sync_gateway,tophatch/sync_gateway,evankyle/sync_gateway,tophatch/sync_gateway,paulharter/sync_gateway,tleyden/sync_gateway,paulharter/sync_gateway,couchbaselabs/sync_gateway,jamiltz/sync_gateway,ceejatec/sync_gateway,jamiltz/sync_gateway,jamiltz/sync_gateway,evankyle/sync_gateway,couchbaselabs/sync_gateway,ceejatec/sync_gateway,tleyden/sync_gateway,paulharter/sync_gateway,ceejatec/sync_gateway