(#5985) - chore(package): update eslint to version 3.12.0
(#5985) - chore(package): update eslint to version 3.12.0

https://greenkeeper.io/
cdaringe/pouchdb,shimaore/pouchdb,tyler-johnson/pouchdb,pouchdb/pouchdb,tyler-johnson/pouchdb,garrensmith/pouchdb,cdaringe/pouchdb,pouchdb/pouchdb,cdaringe/pouchdb,shimaore/pouchdb,garrensmith/pouchdb,seigel/pouchdb,shimaore/pouchdb,seigel/pouchdb,garrensmith/pouchdb,seigel/pouchdb,pouchdb/pouchdb,tyler-johnson/pouchdb