Uses cd .. to go back to run dir. #7

Slather was failing because it could not find
the .slather.yml file located in the root build
dir because the run script peforms a cd Example.

.travis.yml

@@ -9,4 +9,4 @@ before_install:
 script:
   - cd Example && rake xbuild:clean xbuild:test
 after_success:
-  - cd && slather
+  - cd .. && slather