Merge branch 'devel' into 'testing'

Refactoring and codes cleaning

See merge request !144

tsconfig.json

 {
+  "exclude": ["node_modules", "__test", "jest.config.js"],
   "compilerOptions": {
-    "target": "es6",
+    // Target latest version of ECMAScript.
+		"target": "esnext",
+    // Search under node_modules for non-relative imports.
+		"moduleResolution": "node",
     "module": "commonjs",
-    "rootDir": "./",
-    "outDir": "./built",
-    "esModuleInterop": true,
+    // Enable strictest settings like strictNullChecks & noImplicitAny.
     "strict": true,
-    "allowJs": true
-  }
+    // Disallow features that require cross-file information for emit. Ensure that Babel can safely transpile files in the TypeScript project
+		"isolatedModules": true,
+		// Import non-ES modules as default imports.
+		"esModuleInterop": true,
+    // Process & infer types from .js files.
+    "allowJs": true,
+    // Don't emit; allow Babel to transform files.
+		"noEmit": true
+  },
+	"include": [
+		"src"
+	]
 }
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