Move underscore into otto/underscore

underscore/underscore.go

@@ -1,7 +1,10 @@
-package otto
+package underscore
 
-// underscore_js returns the raw file data data.
-func underscore_js() []byte {
+func Source() string {
+	return string(underscore())
+}
+
+func underscore() []byte {
 	return []byte{
 0x2f,0x2f,0x20,0x20,0x20,0x20,0x20,0x55,0x6e,0x64,0x65,0x72,
 0x73,0x63,0x6f,0x72,0x65,0x2e,0x6a,0x73,0x20,0x31,0x2e,0x33,
@@ -3220,4 +3223,4 @@ func underscore_js() []byte {
 0x2e,0x63,0x61,0x6c,0x6c,0x28,0x74,0x68,0x69,0x73,0x29,0x3b,
 0x0a,
 	}
-}
+}

underscore_test.go

@@ -3,11 +3,12 @@ package otto
 import (
     "testing"
     . "github.com/robertkrimen/terst"
+    "github.com/robertkrimen/otto/underscore"
 )
 
 func underscoreTest() func(string, ... interface{}) Value {
 	Otto, test := runTestWithOtto()
-	Otto.Run(string(underscore_js()))
+	Otto.Run(underscore.Source())
 
 	Otto.Set("assert", func(call FunctionCall) Value {
 		if !toBoolean(call.Argument(0)) {