Adding Monitoring quickstart (GoogleCloudPlatform#341)

Author: Takashi Matsuo

.travis.yml

@@ -35,9 +35,9 @@ env:
     - TEST_BUILD_DIR=$TRAVIS_BUILD_DIR
 
 before_install:
-  - git clone https://github.com/GoogleCloudPlatform/php-tools.git
-  - php php-tools/scripts/dump_credentials.php
-  - travis_retry php-tools/scripts/install_test_deps.sh
+  - git clone https://github.com/GoogleCloudPlatform/php-tools.git ${HOME}/php-tools
+  - php ${HOME}/php-tools/scripts/dump_credentials.php
+  - travis_retry ${HOME}/php-tools/scripts/install_test_deps.sh
   - mkdir -p build/logs
 
 before_script:

monitoring/composer.json

@@ -0,0 +1,9 @@
+{
+    "require": {
+        "google/cloud-monitoring": "^0.4"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "4.8.*",
+        "squizlabs/php_codesniffer": "2.*"
+    }
+}