Only load .env if the file exists; bump version

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@extollo/lib",
-  "version": "0.9.21",
+  "version": "0.9.22",
   "description": "The framework library that lifts up your code.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

src/lifecycle/Application.ts

@@ -16,6 +16,7 @@ import {
 import {Logging} from '../service/Logging'
 import {RunLevelErrorHandler} from './RunLevelErrorHandler'
 import {Unit, UnitStatus} from './Unit'
+import * as fs from 'fs'
 import * as dotenv from 'dotenv'
 import {CacheFactory} from '../support/cache/CacheFactory'
 
@@ -242,9 +243,12 @@ export class Application extends Container {
      */
     protected bootstrapEnvironment(): void {
         logIfDebugging('extollo.env', `.env path: ${this.basePath.concat('.env').toLocal}`)
-        dotenv.config({
-            path: this.basePath.concat('.env').toLocal,
-        })
+        const path = this.basePath.concat('.env').toLocal
+        if ( fs.existsSync(path) ) {
+            dotenv.config({
+                path,
+            })
+        }
         logIfDebugging('extollo.env', process.env)
     }