DevKit updates (#4273)

.github/ISSUE_TEMPLATE.md

@@ -1,5 +1,5 @@
 <!--
-    Before you open an issue, make sure this one does not already exists.
+    Before you open an issue, make sure this one does not already exist.
     Please also read the "guidelines for contributing" link above before posting.
 -->
 

.travis.yml

@@ -48,10 +48,10 @@ matrix:
       env: SYMFONY=2.7.*
     - php: '7.0'
       env: SYMFONY=2.8.*
-    - php: '7.0'
-      env: SYMFONY=3.0.*
     - php: '7.0'
       env: SYMFONY=3.1.*
+    - php: '7.0'
+      env: SYMFONY=3.2.*
     - php: '7.0'
       env: SYMFONY=dev-master@dev
     - php: '7.0'