require php 7.1, update travis.yml like Slim 4, update dev dependenci…

…es - resolves #20

.editorconfig

@@ -12,5 +12,5 @@ trim_trailing_whitespace = true
 [*.md]
 trim_trailing_whitespace = false
 
-[*.json]
+[*.{json,yml}]
 indent_size = 2

.travis.yml

@@ -2,27 +2,26 @@ sudo: false
 
 language: php
 
-php:
-  - 7.0
-  - 7.1
-  - 7.2
-  - 7.3
-  - nightly
+dist: trusty
 
 matrix:
+  include:
+    - php: 7.1
+      env: ANALYSIS='true'
+    - php: 7.2
+    - php: 7.3
+    - php: nightly
   allow_failures:
     - php: nightly
 
 before_script:
-  - if [[ "$TRAVIS_PHP_VERSION" == '7.0' ]]; then composer require satooshi/php-coveralls:^0.7 squizlabs/php_codesniffer:^2.5 -n ; fi
-  - if [[ "$TRAVIS_PHP_VERSION" == '7.1' ]]; then composer require phpstan/phpstan:^0.10 -n ; fi
-  - if [[ "$TRAVIS_PHP_VERSION" != '7.0' ]]; then composer install -n ; fi
+  - composer update
 
 script:
-  - if [[ "$TRAVIS_PHP_VERSION" == '7.0' ]]; then mkdir -p build/logs && phpunit --coverage-clover build/logs/clover.xml ; fi
-  - if [[ "$TRAVIS_PHP_VERSION" != '7.0' ]]; then vendor/bin/phpunit ; fi
-  - if [[ "$TRAVIS_PHP_VERSION" == '7.0' ]]; then vendor/bin/phpcs ; fi
-  - if [[ "$TRAVIS_PHP_VERSION" == '7.1' ]]; then vendor/bin/phpstan analyse src/ ; fi
+  - if [[ "$ANALYSIS" != 'true' ]]; then vendor/bin/phpunit ; fi
+  - if [[ "$ANALYSIS" == 'true' ]]; then vendor/bin/phpunit --coverage-clover clover.xml ; fi
+  - if [[ "$ANALYSIS" == 'true' ]]; then vendor/bin/phpcs ; fi
+  - if [[ "$ANALYSIS" == 'true' ]]; then vendor/bin/phpstan analyse ; fi
 
 after_script:
-  - if [[ "$TRAVIS_PHP_VERSION" == '7.0' ]]; then php vendor/bin/coveralls -v ; fi
+  - if [[ "$ANALYSIS" == 'true' ]]; then php vendor/bin/coveralls --coverage_clover=clover.xml -v ; fi

composer.json

@@ -23,15 +23,17 @@
     }
   ],
   "require": {
-    "php": ">=7.0.0",
+    "php": ">=7.1.0",
     "psr/http-message": "^1.0",
     "psr/http-factory": "^1.0"
   },
   "require-dev": {
-    "squizlabs/php_codesniffer": "^2.5",
-    "phpunit/phpunit": "^6.0|^7.0",
+    "http-interop/http-factory-tests": "^0.5.0",
+    "php-coveralls/php-coveralls": "^2.1",
     "php-http/psr7-integration-tests": "dev-master",
-    "http-interop/http-factory-tests": "^0.5.0"
+    "phpstan/phpstan": "^0.10",
+    "phpunit/phpunit": "^6.0|^7.0",
+    "squizlabs/php_codesniffer": "^3.3"
   },
   "provide": {
     "psr/http-message-implementation": "1.0"

phpstan.neon

@@ -1,2 +1,4 @@
 parameters:
     level: 3
+    paths:
+        - %currentWorkingDirectory%/src/