Fix assignment response.host to task.host

[roboncode]

The assignment to response.host throws an error because host is a getter. This looks to be a typo given everywhere else the assignment is to task.host. Before the fix, the error thrown was:

TypeError: Cannot set property host of # which has only a getter
at _hosts.(anonymous function) (/Users/rob/Projects/RobOnCode/totaljs-example/node_modules/arangojs/lib/async/connection.js:130:35)
at IncomingMessage.res.on (/Users/rob/Projects/RobOnCode/totaljs-example/node_modules/arangojs/lib/async/util/request.node.js:78:21)
at IncomingMessage.emit (events.js:185:15)
at endReadableNT (_stream_readable.js:1106:12)
at process._tickCallback (internal/process/next_tick.js:178:19)

[OmarAyo]

Hi @roboncode

Many thanks for contributing. We are obliged by law to have a signed scanned copy of a Contributor License Agreement (CLA) to be able to accept pull requests to the official ArangoDB repository - even for such small changes.

We use an Apache 2 CLA for ArangoDB and its companion projects, which can be found here: https://www.arangodb.com/documents/cla.pdf
Just fill in the form, sign and send a scanned copy over to cla@arangodb.com

Thank you

[pluma]

Upon closer investigation, the code was correct but the name host was already in use in some Node environments. To avoid conflicts the name has been changed to something more unique.