Laravel 7 Support (#706)

* Laravel 7 Support

* use local phpunit to run test

* removed .phpunit.result.cache

Author: mcamara

.travis.yml

@@ -14,7 +14,7 @@ before_script:
   - composer self-update
   - composer install --prefer-dist --no-interaction
 
-script: phpunit -d memory_limit=1024M
+script: ./vendor/bin/phpunit -d memory_limit=1024M
 
 matrix:
   fast_finish: true

composer.json

@@ -13,11 +13,11 @@
     ],
     "require": {
         "php": ">=7.1.0",
-        "laravel/framework": "~5.2.0||~5.3.0||~5.4.0||~5.5.0||~5.6.0||~5.7.0||~5.8.0||^6.0"
+        "laravel/framework": "~5.2.0||~5.3.0||~5.4.0||~5.5.0||~5.6.0||~5.7.0||~5.8.0||^6.0||^7.0"
     },
     "require-dev": {
         "orchestra/testbench-browser-kit": "~3.4|~3.8|~4.0",
-        "phpunit/phpunit": "6.0.*|8.0.*"
+        "phpunit/phpunit": "6.0.*|^8.0"
     },
     "suggest": {
         "ext-intl": "*"