chore(ci) add php cli 7 (Kong#150)

* chore(travis) php 5 to 7

* chore(docker) add docker env

Author: darrenjennings

.travis.yml

@@ -7,7 +7,7 @@ node_js:
 
 before_install:
   - sudo apt-get update -qq
-  - sudo apt-get install -qq --yes python3 php5-curl php5-cli
+  - sudo apt-get install -qq php7.0 php7.0-curl php7.0-cli
 
 after_script:
   - npm run codeclimate

Dockerfile

@@ -0,0 +1,9 @@
+# specify the node base image with your desired version node:<version>
+FROM node:8
+
+ADD . /src
+WORKDIR /src
+
+RUN apt-get update -qq
+RUN apt-get install -qq php7.0 php7.0-curl php7.0-cli
+RUN apt-get install -qq --yes python3

docker-compose.yml

@@ -0,0 +1,5 @@
+version: '3'
+services:
+  httpsnippet:
+    build: .
+    command: [npm, test]