Changelog:

• (#341) - Fix crash on admin setup at db initialization
• (#343): prevent bulkDocs TypeError
• (#233) - Fix for EventEmitter memory leak
• (#323) - Get opts.auth working with XHR in http-pouchdb
• (#317) - Add allow_persistent_cookies config (#319)
• (#311) - Example for the REDIS_URL for the redisdown
• dependency updates