v2 - Upgrade of dependencies and code cleanup

.gitignore

@@ -1,5 +1,6 @@
 vendor/
 .idea/
 
-.php_cs.cache
+.cache/
+*.cache
 

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 Jonathan Gruber
+Copyright (c) 2019 Jonathan Gruber
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -37,7 +37,7 @@ Breaking change as of v1: the parameter `resolution` was renamed to `quality`. S
 
 | Parameter   |Description        |Default              |Valid values|
 |-------------|-------------------|---------------------|------------|
-| `cacheDir` | Directory for image caching | `null` | An existing directory |
+| `cacheDir` | Directory for image caching | `null` | An existing directory, otherwise the directory will be created if possible |
 | `date` | Date of photo | `BingPhoto::DATE_TODAY` |`BingPhoto::DATE_YESTERDAY`, `BingPhoto::DATE_TODAY`, `BingPhoto::DATE_TOMORROW`, `any integer >= -1` |
 | `locale` |Locale code | `Locale::getDefault()` | Whatever language Bing supports |
 | `n` | Number of photos to fetch, going from date backwards | 1 | 1 - 8 |
@@ -84,7 +84,6 @@ foreach ($bing->getImages() as $image) {
 
 ```php
 // Using the local cache 
-// (remember to create the directory first!)
 $bing = new grubersjoe\BingPhoto([
     'cacheDir' => '/tmp/bing-photo',
     'n' => 5,

composer.json

@@ -15,10 +15,12 @@
         }
     },
     "require": {
-        "php": "^5.6.0 || ^7.0"
+        "php": "^7.1",
+        "ext-intl": "*",
+        "ext-json": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^7",
+        "phpunit/phpunit": "^8",
         "friendsofphp/php-cs-fixer": "^2"
     },
     "scripts": {