fix: k8s dependency version: emicklei/go-restful

`emicklei/go-restful` is used by:
- `k8s.io/client-go`  (Godeps)

Refs:
- e121606b0d/Godeps/Godeps.json

vendor/github.com/emicklei/go-restful/mime.go

@@ -0,0 +1,45 @@
+package restful
+
+import (
+	"strconv"
+	"strings"
+)
+
+type mime struct {
+	media   string
+	quality float64
+}
+
+// insertMime adds a mime to a list and keeps it sorted by quality.
+func insertMime(l []mime, e mime) []mime {
+	for i, each := range l {
+		// if current mime has lower quality then insert before
+		if e.quality > each.quality {
+			left := append([]mime{}, l[0:i]...)
+			return append(append(left, e), l[i:]...)
+		}
+	}
+	return append(l, e)
+}
+
+// sortedMimes returns a list of mime sorted (desc) by its specified quality.
+func sortedMimes(accept string) (sorted []mime) {
+	for _, each := range strings.Split(accept, ",") {
+		typeAndQuality := strings.Split(strings.Trim(each, " "), ";")
+		if len(typeAndQuality) == 1 {
+			sorted = insertMime(sorted, mime{typeAndQuality[0], 1.0})
+		} else {
+			// take factor
+			parts := strings.Split(typeAndQuality[1], "=")
+			if len(parts) == 2 {
+				f, err := strconv.ParseFloat(parts[1], 64)
+				if err != nil {
+					traceLogger.Printf("unable to parse quality in %s, %v", each, err)
+				} else {
+					sorted = insertMime(sorted, mime{typeAndQuality[0], f})
+				}
+			}
+		}
+	}
+	return
+}