Adds native record encoding to the library

Makefile

@@ -2,4 +2,5 @@ json.scpt: json.applescript
 	osacompile -o json.scpt json.applescript
 
 test: json.scpt
+	osacompile -o ASUnit/ASUnit.scpt -x ASUnit/ASUnit.applescript
 	osascript tests.applescript

README.md

@@ -47,3 +47,25 @@ set my_dict_2 to json's createDictWith({ {"foo", "bar"}, {"baz", 22} })
 json's encode(my_dict_2)
 -- {"foo": "bar", "baz": 22}
 ```
+
+And also natively (which gives a small performance penalty):
+```applescript
+json's encode({glossary:¬
+		{GlossDiv:¬
+			{GlossList:¬
+				{GlossEntry:¬
+					{GlossDef:¬
+						{GlossSeeAlso:¬
+							["GML", "XML"], para:"A meta-markup language, used to create markup languages such as DocBook."} ¬
+							, GlossSee:"markup", Acronym:"SGML", GlossTerm:"Standard Generalized Markup Language", Abbrev:"ISO 8879:1986", SortAs:"SGML", id:¬
+						"SGML"} ¬
+						}, title:"S"} ¬
+				, title:"example glossary"} ¬
+			})
+```
+
+Decoding is also available (dictionaries with keys which contain spaces are not supported):
+```applescript
+set dict to {foo:"bar"}
+json's decode(json's encode(dict)) -- {foo: "bar"}
+```