Update .travis.yml

PlugIN73 · PlugIN73 · commit 696392e105e5 · 2012-11-09T22:45:25.000+04:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,3 +3,4 @@ rvm:
   - 1.9.3
   - jruby-19mode # JRuby in 1.9 mode
   - rbx-19mode
+services: postgresql
