update travis build cfg

Author: ashnazg

.travis.yml

@@ -1,11 +1,28 @@
-language: php
 sudo: false
-php:
-  - 7
-  - 5.6
-  - 5.5
-  - 5.4
-  - 5.3
-  - 5.2
+language: php
+matrix:
+  include:
+  - php: 5.2
+    dist: precise
+  - php: 5.3
+    dist: precise
+  - php: 5.4
+    dist: trusty
+  - php: 5.5
+    dist: trusty
+  - php: 5.6
+    dist: trusty
+  - php: 7.0
+    dist: trusty
+  - php: 7.1
+    dist: trusty
+  - php: 7.2
+    dist: trusty
+  - php: 7.3
+    dist: trusty
+install:
+  - pear upgrade --force --alldeps pear/pear
+  - pear install -f package.xml
 script:
-  - pear run-tests -r tests/
+  - pear run-tests -qr tests/
+  - for i in `find tests/ -name '*.out'`; do echo "$i"; cat "$i"; done