Add the ability to have the cloudant use a proxy agent about loopback-connector-cloudant HOT 3 CLOSED

| => DEBUG=loopback:connector:cloudant,cloudant,nano node .
  loopback:connector:cloudant Cloudant constructor settings: {"url":"http://admin:pass@localhost:8080","database":"test-db",
"name":"cldntlocal","modelIndex":"","requestDefaults":{"proxy":"http://admin:pass@localhost:7000"},"connector":"cloudant","d
ebug":false} +0ms
  loopback:connector:cloudant Cloudant.prototype.connect +4ms
  cloudant Initialize +0ms { url: 'http://admin:pass@localhost:8080',
  database: 'test-db',
  name: 'cldntlocal',
  modelIndex: '',
  requestDefaults: { proxy: 'http://admin:pass@localhost:7000' },
  connector: 'cloudant',
  debug: false }
  cloudant Create underlying Nano instance, options={"url":"http://admin:pass@localhost:8080","database":"test-db","name":"c
ldntlocal","modelIndex":"","requestDefaults":{"proxy":"http://admin:pass@localhost:7000","agent":{"domain":null,"_events":{}
,"_eventsCount":1,"defaultPort":80,"protocol":"http:","options":{"keepAlive":true,"path":null},"requests":{},"sockets":{},"f
reeSockets":{},"keepAliveMsecs":1000,"keepAlive":true,"maxSockets":null,"maxFreeSockets":256}},"connector":"cloudant","debug
":false} requestDefaults={"proxy":"http://admin:pass@localhost:7000","agent":{"domain":null,"_events":{},"_eventsCount":1,"d
efaultPort":80,"protocol":"http:","options":{"keepAlive":true,"path":null},"requests":{},"sockets":{},"freeSockets":{},"keep
AliveMsecs":1000,"keepAlive":true,"maxSockets":null,"maxFreeSockets":256}} +4ms
  cloudant Automatic ping +2ms
  nano { method: 'GET', headers: { 'content-type': 'application/json', accept: 'application/json' }, uri: 'http://admin:pass
@localhost:8080/_session' } +3ms
Web server listening at: http://0.0.0.0:3000
Browse your REST API at http://0.0.0.0:3000/explorer
  nano { err: null, body: { ok: true, userCtx: { name: 'admin', roles: [Object] }, info: { authentication_db: '_users', auth
entication_handlers: [Object], authenticated: 'default' } }, headers: { date: 'Thu, 01 Jun 2017 19:18:10 GMT', 'content-type
': 'application/json', connection: 'close', 'cache-control': 'must-revalidate', statusCode: 200, uri: 'http://admin:pass@loc
alhost:8080/_session' } } +193ms
  nano { method: 'GET', headers: { 'content-type': 'application/json', accept: 'application/json' }, uri: 'http://admin:pass
@localhost:8080' } +1ms
  nano { err: null, body: { couchdb: 'Welcome', version: '1.0.0.5-local', vendor: { name: 'Cloudant, an IBM Company', versio
n: '1.0.0.5', variant: 'local' }, features: [ 'geo' ] }, headers: { 'x-couchdb-body-time': '0', 'x-couch-request-id': '4080d
dbd02', date: 'Thu, 01 Jun 2017 19:18:10 GMT', 'content-type': 'application/json', connection: 'close', 'cache-control': 'mu
st-revalidate', statusCode: 200, uri: 'http://admin:pass@localhost:8080' } } +16ms

| => DEBUG=loopback:connector:cloudant,cloudant,nano node .
  loopback:connector:cloudant Cloudant constructor settings: {"url":"http://admin:pass@localhost:8080","database":"test-db",
"name":"cldntlocal","modelIndex":"","requestDefaults":{"proxy":"http://admin:pass@localhost:7001"},"connector":"cloudant","d
ebug":false} +0ms
  loopback:connector:cloudant Cloudant.prototype.connect +4ms
  cloudant Initialize +0ms { url: 'http://admin:pass@localhost:8080',
  database: 'test-db',
  name: 'cldntlocal',
  modelIndex: '',
  requestDefaults: { proxy: 'http://admin:pass@localhost:7001' },
  connector: 'cloudant',
  debug: false }
  cloudant Create underlying Nano instance, options={"url":"http://admin:pass@localhost:8080","database":"test-db","name":"c
ldntlocal","modelIndex":"","requestDefaults":{"proxy":"http://admin:pass@localhost:7001","agent":{"domain":null,"_events":{}
,"_eventsCount":1,"defaultPort":80,"protocol":"http:","options":{"keepAlive":true,"path":null},"requests":{},"sockets":{},"f
reeSockets":{},"keepAliveMsecs":1000,"keepAlive":true,"maxSockets":null,"maxFreeSockets":256}},"connector":"cloudant","debug
":false} requestDefaults={"proxy":"http://admin:pass@localhost:7001","agent":{"domain":null,"_events":{},"_eventsCount":1,"d
efaultPort":80,"protocol":"http:","options":{"keepAlive":true,"path":null},"requests":{},"sockets":{},"freeSockets":{},"keep
AliveMsecs":1000,"keepAlive":true,"maxSockets":null,"maxFreeSockets":256}} +6ms
  cloudant Automatic ping +4ms
  nano { method: 'GET', headers: { 'content-type': 'application/json', accept: 'application/json' }, uri: 'http://admin:pass
@localhost:8080/_session' } +4ms
Web server listening at: http://0.0.0.0:3000
Browse your REST API at http://0.0.0.0:3000/explorer
  nano { err: 'socket', body: undefined, headers: { statusCode: 500, uri: 'http://admin:pass@localhost:8080/_session' } } +2
03ms
Connection fails: Error: error happened in your connection
It will be retried for the next request.
events.js:160
      throw er; // Unhandled 'error' event
      ^

Error: connect ECONNREFUSED 127.0.0.1:7001
    at Object.exports._errnoException (util.js:1018:11)
    at exports._exceptionWithHostPort (util.js:1041:20)
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1086:14)