Digitalocean provider (#171)

* Implement Digitalocean provider
* Vendor digitalocean lib
* Enable SRV for Digitalocean and fix the tests
* Test cname etc. records pointing to the same domain

vendor/github.com/digitalocean/godo/timestamp.go

@@ -0,0 +1,35 @@
+package godo
+
+import (
+	"strconv"
+	"time"
+)
+
+// Timestamp represents a time that can be unmarshalled from a JSON string
+// formatted as either an RFC3339 or Unix timestamp. All
+// exported methods of time.Time can be called on Timestamp.
+type Timestamp struct {
+	time.Time
+}
+
+func (t Timestamp) String() string {
+	return t.Time.String()
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface.
+// Time is expected in RFC3339 or Unix format.
+func (t *Timestamp) UnmarshalJSON(data []byte) error {
+	str := string(data)
+	i, err := strconv.ParseInt(str, 10, 64)
+	if err == nil {
+		t.Time = time.Unix(i, 0)
+	} else {
+		t.Time, err = time.Parse(`"`+time.RFC3339+`"`, str)
+	}
+	return err
+}
+
+// Equal reports whether t and u are equal based on time.Equal
+func (t Timestamp) Equal(u Timestamp) bool {
+	return t.Time.Equal(u.Time)
+}