Extracted Verb to it's own file and made Request package-private

src/main/java/org/scribe/model/Verb.java

@@ -0,0 +1,11 @@
+package org.scribe.model;
+
+/**
+ * An enumeration containing the most common HTTP Verbs.
+ * 
+ * @author Pablo Fernandez
+ */
+public enum Verb
+{
+  GET, POST, PUT, DELETE
+}