DevKit updates (#4304)

.travis.yml

@@ -15,6 +15,7 @@ php:
   - '5.5'
   - '5.6'
   - '7.0'
+  - '7.1'
   - nightly
   - hhvm
 
@@ -36,33 +37,33 @@ env:
 matrix:
   fast_finish: true
   include:
-    - php: '7.0'
+    - php: '7.1'
       env: TARGET=docs
-    - php: '7.0'
+    - php: '7.1'
       env: TARGET=lint
     - php: '5.3'
       env: COMPOSER_FLAGS="--prefer-lowest"
-    - php: '7.0'
+    - php: '7.1'
       env: SYMFONY=2.3.*
-    - php: '7.0'
+    - php: '7.1'
       env: SYMFONY=2.7.*
-    - php: '7.0'
+    - php: '7.1'
       env: SYMFONY=2.8.*
-    - php: '7.0'
+    - php: '7.1'
       env: SYMFONY=3.1.*
-    - php: '7.0'
+    - php: '7.1'
       env: SYMFONY=3.2.*
-    - php: '7.0'
+    - php: '7.1'
       env: SYMFONY=dev-master@dev
-    - php: '7.0'
+    - php: '7.1'
       env: SONATA_CORE=3.*
-    - php: '7.0'
+    - php: '7.1'
       env: SONATA_CORE=dev-master@dev
-    - php: '7.0'
+    - php: '7.1'
       env: SONATA_BLOCK=3.*
-    - php: '7.0'
+    - php: '7.1'
       env: SONATA_BLOCK=dev-master@dev
-    - php: '7.0'
+    - php: '7.1'
       env: SYMFONY_DEPRECATIONS_HELPER=0
   allow_failures:
     - php: nightly