Merge branch 'feature/50-psr-15' into release-5.0.0

Close #50

.travis.yml

@@ -10,36 +10,17 @@ env:
   global:
     - COMPOSER_ARGS="--no-interaction"
     - COVERAGE_DEPS="satooshi/php-coveralls"
-    - LEGACY_DEPS="phpunit/phpunit"
 
 matrix:
   include:
-    - php: 5.6
-      env:
-        - DEPS=lowest
-    - php: 5.6
-      env:
-        - DEPS=locked
-        - TEST_COVERAGE=true
-    - php: 5.6
-      env:
-        - DEPS=latest
-    - php: 7
-      env:
-        - DEPS=lowest
-    - php: 7
-      env:
-        - DEPS=locked
-        - CS_CHECK=true
-    - php: 7
-      env:
-        - DEPS=latest
     - php: 7.1
       env:
         - DEPS=lowest
     - php: 7.1
       env:
         - DEPS=locked
+        - CS_CHECK=true
+        - TEST_COVERAGE=true
     - php: 7.1
       env:
         - DEPS=latest
@@ -52,16 +33,12 @@ matrix:
     - php: 7.2
       env:
         - DEPS=latest
-  allow_failures:
-    - php: 7.2
 
 before_install:
   - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
-  - travis_retry composer self-update
 
 install:
-  - travis_retry composer install $COMPOSER_ARGS --ignore-platform-reqs
-  - if [[ $TRAVIS_PHP_VERSION =~ ^5.6 ]]; then travis_retry composer update $COMPOSER_ARGS --with-dependencies $LEGACY_DEPS ; fi
+  - travis_retry composer install $COMPOSER_ARGS
   - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
   - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi

composer.json

@@ -21,16 +21,16 @@
         "sort-packages": true
     },
     "require": {
-        "php": "^5.6 || ^7.0",
+        "php": "^7.1",
         "psr/container": "^1.0",
         "psr/http-message": "^1.0.1",
-        "webimpress/http-middleware-compatibility": "^0.1.1",
-        "zendframework/zend-expressive-router": "^2.2"
+        "http-interop/http-server-middleware": "^1.0.1",
+        "zendframework/zend-expressive-router": "^3.0.0@dev"
     },
     "require-dev": {
         "malukenho/docheader": "^0.1.5",
         "mockery/mockery": "^1.0",
-        "phpunit/phpunit": "^5.7.22 || ^6.4.1",
+        "phpunit/phpunit": "^6.4.4",
         "zendframework/zend-coding-standard": "~1.0.0",
         "zendframework/zend-diactoros": "^1.3.10"
     },