diff --git a/index.ts b/index.ts
index c620c8a..6591399 100644
--- a/index.ts
+++ b/index.ts
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 Sergey Akopkokhyants
+// Copyright (C) 2016-2017 Sergey Akopkokhyants
 // This project is licensed under the terms of the MIT license.
 // https://github.com/akserg/ng2-toasty
 
diff --git a/package.json b/package.json
index 3eac9d7..ffab977 100644
--- a/package.json
+++ b/package.json
@@ -6,9 +6,10 @@
     "test": "karma start",
     "test-watch": "tsc && karma start --no-single-run --auto-watch",
     "commit": "npm run prepublish && npm test && git-cz",
-    "prepublish": "ngc && npm run build",
-    "build": "webpack && cp *.css bundles && cp -rf img bundles/img",
-    "semantic-release": "semantic-release pre && npm publish && semantic-release post"
+    "prepublish": "npm run build",
+    "build": "ngc --noUnusedParameters --noUnusedLocals && webpack && npm run minify && cp *.css bundles && rm -rf bundles/img && mkdir bundles/img && cp -rf img/*.* bundles/img",
+    "semantic-release": "semantic-release pre && npm publish && semantic-release post",
+    "minify": "./node_modules/uglify-js/bin/uglifyjs bundles/index.umd.js --screw-ie8 --compress --mangle --comments --output bundles/index.umd.min.js"
   },
   "repository": {
     "type": "git",
@@ -68,6 +69,7 @@
     "tslint": "^5.4.3",
     "tslint-loader": "^3.5.3",
     "typescript": "^2.3.4",
+    "uglify-js": "^3.0.15",
     "webpack": "^2.6.1",
     "zone.js": "^0.8.12"
   },
diff --git a/src/shared.ts b/src/shared.ts
index 226ff36..0a3c7ba 100644
--- a/src/shared.ts
+++ b/src/shared.ts
@@ -1,3 +1,7 @@
+// Copyright (C) 2016-2017 Sergey Akopkokhyants
+// This project is licensed under the terms of the MIT license.
+// https://github.com/akserg/ng2-toasty
+
 import { DomSanitizer } from '@angular/platform-browser';
 import { PipeTransform, Pipe } from '@angular/core';
 
diff --git a/src/toast.component.ts b/src/toast.component.ts
index b014465..c60e26f 100644
--- a/src/toast.component.ts
+++ b/src/toast.component.ts
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 Sergey Akopkokhyants
+// Copyright (C) 2016-2017 Sergey Akopkokhyants
 // This project is licensed under the terms of the MIT license.
 // https://github.com/akserg/ng2-toasty
 
diff --git a/src/toasty.component.ts b/src/toasty.component.ts
index 44cc5b5..ec0ebaf 100644
--- a/src/toasty.component.ts
+++ b/src/toasty.component.ts
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 Sergey Akopkokhyants
+// Copyright (C) 2016-2017 Sergey Akopkokhyants
 // This project is licensed under the terms of the MIT license.
 // https://github.com/akserg/ng2-toasty
 
diff --git a/src/toasty.service.ts b/src/toasty.service.ts
index f744f03..1930f3a 100644
--- a/src/toasty.service.ts
+++ b/src/toasty.service.ts
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 Sergey Akopkokhyants
+// Copyright (C) 2016-2017 Sergey Akopkokhyants
 // This project is licensed under the terms of the MIT license.
 // https://github.com/akserg/ng2-toasty
 
diff --git a/src/toasty.utils.ts b/src/toasty.utils.ts
index 8c42dfd..d809f1b 100644
--- a/src/toasty.utils.ts
+++ b/src/toasty.utils.ts
@@ -1,20 +1,31 @@
+
+// Copyright (C) 2016-2017 Sergey Akopkokhyants
+// This project is licensed under the terms of the MIT license.
+// https://github.com/akserg/ng2-toasty
+
 /**
  * Check and return true if an object is type of string
+ * @param obj Analyse has to object the string type
+ * @return result of analysis
  */
-export function isString(obj:any) {
+export function isString(obj: any): boolean {
     return typeof obj === "string";
 }
 
 /**
  * Check and return true if an object is type of number
+ * @param obj Analyse has to object the boolean type
+ * @return result of analysis
  */
-export function isNumber(obj: any) {
+export function isNumber(obj: any): boolean {
     return typeof obj === "number";
 }
 
 /**
  * Check and return true if an object is type of Function
+ * @param obj Analyse has to object the function type
+ * @return result of analysis
  */
-export function isFunction(obj: any) {
+export function isFunction(obj: any): boolean {
     return typeof obj === "function";
 }
diff --git a/tsconfig.json b/tsconfig.json
index e346ac8..98d7744 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -15,15 +15,7 @@
     "lib": ["es2015", "dom"]
   },
   "files": [
-    "index.ts",
-    "./src/shared.ts",
-    "./src/toast.component.ts",
-    "./src/toasty.component.ts",
-    "./src/toasty.service.ts",
-    "./src/toasty.utils.ts",
-    "tests/toast.component.spec.ts",
-    "tests/toasty.component.spec.ts",
-    "tests/toasty.service.spec.ts"
+    "index.ts"
   ],
   "exclude": [
     "node_modules",
diff --git a/tslint.json b/tslint.json
index e7ad6e2..d78478f 100644
--- a/tslint.json
+++ b/tslint.json
@@ -31,8 +31,6 @@
     "no-shadowed-variable": true,
     "no-string-literal": false,
     "no-unused-expression": true,
-    "no-unused-variable": true,
-    "no-use-before-declare": true,
     "object-literal-sort-keys": false,
     "one-line": [
       true,