Merge pull request #90 from JeremyDunn/update-travis-config

update travis ci config for PHP 7.2, 7.3

Author: JeremyDunn

.travis.yml

@@ -1,12 +1,13 @@
 language: php
 
 php:
-  - 5.6
   - 7.0
   - 7.1
+  - 7.2
+  - 7.3
 
 install:
-  - composer update --no-interaction --no-ansi --no-progress --no-suggest --optimize-autoloader --prefer-stable --prefer-lowest
+  - composer update --no-interaction --no-ansi --no-progress --no-suggest --optimize-autoloader --prefer-stable
 
 script: vendor/bin/phpunit
 

composer.json

@@ -18,9 +18,9 @@
     "require-dev": {
         "symfony/console": "2.*",
         "apigen/apigen": "^4.1",
-        "phpunit/phpunit": "^5.7",
         "fzaninotto/faker": "^1.6",
-        "squizlabs/php_codesniffer": "*"
+        "squizlabs/php_codesniffer": "*",
+        "phpunit/phpunit": "^6.5"
     },
     "autoload": {
         "psr-4": {