Compiler spec added

package.json

 {
     "name": "json",
     "version": "0.0.3",
-  "author": "Jonas Oberschweiber",
+    "author": "Jonas Oberschweiber <jonas@oberschweiber.com>",
     "maintainer": "Michael Hanus <mh@informatik.uni-kiel.de>",
     "synopsis": "A JSON library for Curry",
     "category": [ "Data", "Web" ],
     "dependencies": {
         "det-parse": "= 0.0.1"
     },
+    "compilerCompatibility": {
+        "pakcs": ">= 1.14.0, < 2.0.0",
+        "kics2": ">= 0.5.0, < 2.0.0"
+    },
     "exportedModules": ["JSON.Data", "JSON.Parser", "JSON.Pretty"],
     "source": {
         "git": "https://git.ps.informatik.uni-kiel.de/curry-packages/json.git",