Add SoftLayer DNS provider (#59)

Add SoftLayer DNS as a DomainServiceProvider.

The SoftLayer API is a bit of a mess and treats MX and SRV records
differently. This leads to some replication and custom handling issues
to work around.

In this patch I have to change the SRV test case to be _tcp instead of
_protocol because softlayer requires a "known" protocol which AFAICT is
tcp, udp or tls. I think this will be acceptable in most cases.

Signed-off-by: Jamie Lennox <jamielennox@gmail.com>

vendor/github.com/softlayer/softlayer-go/services/survey.go

@@ -0,0 +1,112 @@
+/**
+ * Copyright 2016 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * AUTOMATICALLY GENERATED CODE - DO NOT MODIFY
+ */
+
+package services
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/softlayer/softlayer-go/datatypes"
+	"github.com/softlayer/softlayer-go/session"
+	"github.com/softlayer/softlayer-go/sl"
+)
+
+// The SoftLayer_Survey data type contains general information relating to a single SoftLayer survey.
+type Survey struct {
+	Session *session.Session
+	Options sl.Options
+}
+
+// GetSurveyService returns an instance of the Survey SoftLayer service
+func GetSurveyService(sess *session.Session) Survey {
+	return Survey{Session: sess}
+}
+
+func (r Survey) Id(id int) Survey {
+	r.Options.Id = &id
+	return r
+}
+
+func (r Survey) Mask(mask string) Survey {
+	if !strings.HasPrefix(mask, "mask[") && (strings.Contains(mask, "[") || strings.Contains(mask, ",")) {
+		mask = fmt.Sprintf("mask[%s]", mask)
+	}
+
+	r.Options.Mask = mask
+	return r
+}
+
+func (r Survey) Filter(filter string) Survey {
+	r.Options.Filter = filter
+	return r
+}
+
+func (r Survey) Limit(limit int) Survey {
+	r.Options.Limit = &limit
+	return r
+}
+
+func (r Survey) Offset(offset int) Survey {
+	r.Options.Offset = &offset
+	return r
+}
+
+// Provides survey details for the given type
+func (r Survey) GetActiveSurveyByType(typ *string) (resp datatypes.Survey, err error) {
+	params := []interface{}{
+		typ,
+	}
+	err = r.Session.DoRequest("SoftLayer_Survey", "getActiveSurveyByType", params, &r.Options, &resp)
+	return
+}
+
+// getObject retrieves the SoftLayer_Survey object whose ID number corresponds to the ID number of the init parameter passed to the SoftLayer_Survey service. You can only retrieve the survey that your portal user has taken.
+func (r Survey) GetObject() (resp datatypes.Survey, err error) {
+	err = r.Session.DoRequest("SoftLayer_Survey", "getObject", nil, &r.Options, &resp)
+	return
+}
+
+// Retrieve The questions for a survey.
+func (r Survey) GetQuestions() (resp []datatypes.Survey_Question, err error) {
+	err = r.Session.DoRequest("SoftLayer_Survey", "getQuestions", nil, &r.Options, &resp)
+	return
+}
+
+// Retrieve The status of the survey
+func (r Survey) GetStatus() (resp datatypes.Survey_Status, err error) {
+	err = r.Session.DoRequest("SoftLayer_Survey", "getStatus", nil, &r.Options, &resp)
+	return
+}
+
+// Retrieve The type of survey
+func (r Survey) GetType() (resp datatypes.Survey_Type, err error) {
+	err = r.Session.DoRequest("SoftLayer_Survey", "getType", nil, &r.Options, &resp)
+	return
+}
+
+// Response to a SoftLayer survey's questions.
+func (r Survey) TakeSurvey(responses []datatypes.Survey_Response) (resp bool, err error) {
+	params := []interface{}{
+		responses,
+	}
+	err = r.Session.DoRequest("SoftLayer_Survey", "takeSurvey", params, &r.Options, &resp)
+	return
+}