Fixed a bug in handling an "*/*" Accept header.

accept.go

diff --git a/accept.go b/accept.go
index ed7d16e..335cc6f 100644
--- a/accept.go
+++ b/accept.go
@@ -32,8 +32,8 @@
 Only the first "Accept" header on the request is considered.
 */
 func SelectMediaType(req *http.Request, choices []string) string {
-	hdr := req.Header.Get("Accept")
-	if hdr == "" {
+	hdr := strings.TrimSpace(req.Header.Get("Accept"))
+	if hdr == "" || hdr == "*" || hdr == "*/*" {
 		if len(choices) >= 1 {
 			return choices[0]
 		}

accept_test.go

diff --git a/accept_test.go b/accept_test.go
index f9cfe75..346f284 100644
--- a/accept_test.go
+++ b/accept_test.go
@@ -31,6 +31,18 @@
 			[]string{"application/json", "text/plain"})).Should(Equal("application/json"))
 	})
 
+	It("Accept all, two choices", func() {
+		Expect(SelectMediaType(
+			makeRequest("*/*"),
+			[]string{"text/plain", "text/xml"})).Should(Equal("text/plain"))
+	})
+
+	It("Accept all, two choices 2", func() {
+		Expect(SelectMediaType(
+			makeRequest("*/*"),
+			[]string{"application/json", "text/plain"})).Should(Equal("application/json"))
+	})
+
 	It("One Header, two choices", func() {
 		Expect(SelectMediaType(
 			makeRequest("application/json"),