* swarm/storage/localstore: close localstore in two tests

* swarm/storage/localstore: fix a possible deadlock in tests

* swarm/storage/localstore: re-enable pull subs tests for travis race

* swarm/storage/localstore: stop sending to errChan on context done in tests

* swarm/storage/localstore: better want check in readPullSubscriptionBin

* swarm/storage/localstore: protect chunk put with addr lock in tests

* swamr/storage/localstore: wait for gc and writeGCSize workers on Close

* swarm/storage/localstore: more correct testDB_collectGarbageWorker

* swarm/storage/localstore: set DB Close timeout to 5s