vendor: add github.com/ncw/dropbox-sdk-go-unofficial and remove github.com/stacktic/dropbox

In due course this will become github.com/dropbox/dropbox-sdk-go-unofficial
when the fate of https://github.com/dropbox/dropbox-sdk-go-unofficial/pull/14
has been decided.

vendor/github.com/ncw/dropbox-sdk-go-unofficial/dropbox/async/types.go

@@ -0,0 +1,132 @@
+// Copyright (c) Dropbox, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package async : has no documentation (yet)
+package async
+
+import (
+	"encoding/json"
+
+	"github.com/ncw/dropbox-sdk-go-unofficial/dropbox"
+)
+
+// LaunchResultBase : Result returned by methods that launch an asynchronous
+// job. A method who may either launch an asynchronous job, or complete the
+// request synchronously, can use this union by extending it, and adding a
+// 'complete' field with the type of the synchronous response. See
+// `LaunchEmptyResult` for an example.
+type LaunchResultBase struct {
+	dropbox.Tagged
+	// AsyncJobId : This response indicates that the processing is asynchronous.
+	// The string is an id that can be used to obtain the status of the
+	// asynchronous job.
+	AsyncJobId string `json:"async_job_id,omitempty"`
+}
+
+// Valid tag values for LaunchResultBase
+const (
+	LaunchResultBaseAsyncJobId = "async_job_id"
+)
+
+// UnmarshalJSON deserializes into a LaunchResultBase instance
+func (u *LaunchResultBase) UnmarshalJSON(body []byte) error {
+	type wrap struct {
+		dropbox.Tagged
+	}
+	var w wrap
+	var err error
+	if err = json.Unmarshal(body, &w); err != nil {
+		return err
+	}
+	u.Tag = w.Tag
+	switch u.Tag {
+	case "async_job_id":
+		err = json.Unmarshal(body, &u.AsyncJobId)
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// LaunchEmptyResult : Result returned by methods that may either launch an
+// asynchronous job or complete synchronously. Upon synchronous completion of
+// the job, no additional information is returned.
+type LaunchEmptyResult struct {
+	dropbox.Tagged
+}
+
+// Valid tag values for LaunchEmptyResult
+const (
+	LaunchEmptyResultComplete = "complete"
+)
+
+// PollArg : Arguments for methods that poll the status of an asynchronous job.
+type PollArg struct {
+	// AsyncJobId : Id of the asynchronous job. This is the value of a response
+	// returned from the method that launched the job.
+	AsyncJobId string `json:"async_job_id"`
+}
+
+// NewPollArg returns a new PollArg instance
+func NewPollArg(AsyncJobId string) *PollArg {
+	s := new(PollArg)
+	s.AsyncJobId = AsyncJobId
+	return s
+}
+
+// PollResultBase : Result returned by methods that poll for the status of an
+// asynchronous job. Unions that extend this union should add a 'complete' field
+// with a type of the information returned upon job completion. See
+// `PollEmptyResult` for an example.
+type PollResultBase struct {
+	dropbox.Tagged
+}
+
+// Valid tag values for PollResultBase
+const (
+	PollResultBaseInProgress = "in_progress"
+)
+
+// PollEmptyResult : Result returned by methods that poll for the status of an
+// asynchronous job. Upon completion of the job, no additional information is
+// returned.
+type PollEmptyResult struct {
+	dropbox.Tagged
+}
+
+// Valid tag values for PollEmptyResult
+const (
+	PollEmptyResultComplete = "complete"
+)
+
+// PollError : Error returned by methods for polling the status of asynchronous
+// job.
+type PollError struct {
+	dropbox.Tagged
+}
+
+// Valid tag values for PollError
+const (
+	PollErrorInvalidAsyncJobId = "invalid_async_job_id"
+	PollErrorInternalError     = "internal_error"
+	PollErrorOther             = "other"
+)