(#5904) - more helpful error message for invalid plugin
(#5904) - more helpful error message for invalid plugin

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cdaringe/pouchdb,seigel/pouchdb,pouchdb/pouchdb,cdaringe/pouchdb,tyler-johnson/pouchdb,tyler-johnson/pouchdb,shimaore/pouchdb,seigel/pouchdb,shimaore/pouchdb,garrensmith/pouchdb,pouchdb/pouchdb,cdaringe/pouchdb,seigel/pouchdb,pouchdb/pouchdb,garrensmith/pouchdb,shimaore/pouchdb,garrensmith/pouchdb,tyler-johnson/pouchdb