Added camelCase function that converts --multi-word-option to camel c…

…ase (so it becomes argv.multiWordOption).

It works well with demand(), boolean(), check() etc. If you apply camelCase() before the others, you get to use the camelCased option name in your parameters.

index.js

@@ -199,6 +199,19 @@ function Argv (args, cwd) {
         return Argv(args).argv;
     };
 
+    self.camelCase = function () {
+        for (var key in self.argv) {
+            var camelCasedKey = key.replace(/-([a-z])/g, function ($0, firstLetter) {
+                return firstLetter.toUpperCase();
+            });
+            if (camelCasedKey !== key) {
+                self.argv[camelCasedKey] = self.argv[key];
+                delete self.argv[key];
+            }
+        }
+        return self;
+    };
+
     return self;
 };