Merge pull request #50 from snc/travis-ci

Add support for Travis CI.

.travis.yml

@@ -0,0 +1,5 @@
+language: php
+php:
+  - 5.3
+  - 5.4
+before_script: touch test/enable.tests

test/PredisShared.php

@@ -11,7 +11,7 @@
 
 if (!file_exists(__DIR__.'/enable.tests')) {
     exit(
-        "Please create an empty file named 'enabled.tests' inside the test directory ".
+        "Please create an empty file named 'enable.tests' inside the test directory ".
         "in order to proceed.\n\n*** DO NOT *** run this test suite against servers in ".
         "a production environment or containing data you are interested in!\n"
     );