feat(package): upgrade to ng v2.3+ (#574)

tsconfig.json

@@ -1,35 +0,0 @@
-{
-  "compilerOptions": {
-    "target": "es5",
-    "module": "commonjs",
-    "sourceMap": false,
-    "declaration": true,
-    "removeComments": true,
-    "emitDecoratorMetadata": true,
-    "experimentalDecorators": true,
-    "listFiles": false,
-    "noLib": false,
-    "noImplicitAny": true,
-    "suppressImplicitAnyIndexErrors": true,
-    "skipLibCheck": true,
-    "stripInternal": true,
-    "lib": [
-      "dom",
-      "es6"
-    ],
-    "types": [
-      "jasmine",
-      "node",
-      "webpack"
-    ]
-  },
-  "exclude": [
-    "node_modules",
-    "bundles",
-    "dist"
-  ],
-  "files": [
-    "./ng2-file-upload.ts",
-    "./demo/custom-typings.d.ts"
-  ]
-}