standardizes translate samples (GoogleCloudPlatform#500)

Author: bshaffer

translate/api/README.md renamed to translate/README.md

@@ -13,14 +13,14 @@ https://cloud.google.com/translate/).
 3.  **Clone the repo** and cd into this directory
 ```
     $ git clone https://github.com/GoogleCloudPlatform/php-docs-samples
-    $ cd php-docs-samples/translate/api
+    $ cd php-docs-samples/translate
 ```
 4.  **Install dependencies** via [Composer](http://getcomposer.org/doc/00-intro.md).
     Run `php composer.phar install` (if composer is installed locally) or `composer install`
     (if composer is installed globally).
 5.  **Run**:
 ```
-$ php translate.php 
+$ php translate.php
 Console Tool
 
 Usage:
@@ -36,12 +36,12 @@ Options:
   -v|vv|vvv, --verbose  Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
 
 Available commands:
-  detect      Detect which language text was written in using Google Cloud Translate API
-  help        Displays help for a command
-  list        Lists commands
-  list-codes  List all the language codes in the Google Cloud Translate API
-  list-langs  List language codes and names in the Google Cloud Translate API
-  translate   Translate text using Google Cloud Translate API
+  detect-language   Detect which language text was written in using Google Cloud Translate API
+  help              Displays help for a command
+  list              Lists commands
+  list-codes        List all the language codes in the Google Cloud Translate API
+  list-langs        List language codes and names in the Google Cloud Translate API
+  translate         Translate text using Google Cloud Translate API
 ```
 
 6. Run `php translate.php COMMAND --help` to print information about the usage of each command.

translate/api/src/DetectLanguageCommand.php

@@ -5,11 +5,6 @@
         "google/cloud-translate": "^0.2",
         "symfony/console": "^3.1"
     },
-    "autoload": {
-        "psr-4": {
-            "Google\\Cloud\\Samples\\Translate\\": "src/"
-        }
-    },
     "require-dev": {
         "phpunit/phpunit": "~4"
     }

translate/api/src/ListCodesCommand.php

@@ -28,4 +28,7 @@
             <directory suffix=".php">./srcdirectory>
         whitelist>
     filter>
+    <php>
+        <env name="PHPUNIT_TESTS" value="1"/>
+    php>
 phpunit>