Add license for some files (#940)

benchmarks_test.go

@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (

binding/default_validator.go

@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package binding
 
 import (

context_appengine.go

@@ -1,5 +1,9 @@
 // +build appengine
 
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 func init() {

fs.go

@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (

gin_integration_test.go

@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (

test_helpers.go

@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (