remove PHP 7 from travis config

.travis.yml

@@ -9,11 +9,10 @@ addons:
       - tidy
 
 php:
+  - 5.3
   - 5.4
   - 5.5
   - 5.6
-  - 7.0
-  - 7.1
 
 before_install:
   - pip install --user codecov
@@ -22,28 +21,11 @@ env:
   global:
     - DB=MYSQL CORE_RELEASE=3.1
     - MODULE_PATH=auth-username
-
     # Set to 1 in the matrix to enable code coverage
     - COVERAGE=0
 
 matrix:
   include:
-    - php: 7.1
-      env: DB=MYSQL COVERAGE=1
-    - php: 7.1
-      env: DB=PGSQL
-    - php: 7.1
-      env: DB=MYSQL CORE_RELEASE=3.2
-    - php: 7.1
-      env: DB=PGSQL CORE_RELEASE=3.2
-    - php: 7.0
-      env: DB=MYSQL COVERAGE=1
-    - php: 7.0
-      env: DB=PGSQL
-    - php: 7.0
-      env: DB=MYSQL CORE_RELEASE=3.2
-    - php: 7.0
-      env: DB=PGSQL CORE_RELEASE=3.2
     - php: 5.6
       env: DB=MYSQL COVERAGE=1
     - php: 5.6
@@ -60,6 +42,10 @@ matrix:
       env: DB=MYSQL
     - php: 5.4
       env: DB=SQLITE
+    - php: 5.3
+      env: DB=MYSQL
+  allow_failures:
+    - php: 7.0
 
 before_script:
   - phpenv rehash