ConnectionManagers shouldn't be closed, otherwise a new API instance is required per connection. Also adding ConfiglessCustomHTTPEngine again to not need to create a new API per request when using Cookie auth.
Merge pull request #2 from akovari/master

ConnectionManagers shouldn't be closed, otherwise a new API instance is required per connection. Also adding ConfiglessCustomHTTPEngine again to not need to create a new API per request when using Cookie auth.