Reorganizes the project with clean MVC structure

router.go

@@ -119,11 +119,14 @@ func (a *appData) buildRouter() http.Handler {
 				return
 			}
 
-			io.Copy(w, rc)
+			_, err = io.Copy(w, rc)
+			if err != nil {
+				panic(fmt.Sprintf("internal error: %s", err))
+			}
 
 		})))
 
-	dirs := []string{"css", "js", "img", "fonts", "html", "bower_components"}
+	dirs := []string{"css", "js", "img", "bower_components"}
 	for _, d := range dirs {
 		router.ServeFiles(path.Join("/", d, "/*filepath"), http.Dir(filepath.Join("webapp", d)))
 	}
@@ -137,7 +140,11 @@ func (a *appData) buildRouter() http.Handler {
 			}
 			defer closeOrPanic(f, filepath.Join("webapp", "index.html"))
 
-			io.Copy(w, f)
+			_, err = io.Copy(w, f)
+			if err != nil {
+				panic(fmt.Sprintf("internal error: %s", err))
+			}
+
 		})))
 
 	return router