Merge pull request #486 from lurch/patch-1

Update .travis.yml to use python3.3

.travis.yml

@@ -3,8 +3,12 @@ compiler:
   - gcc
 
 before_script:
-  - sudo apt-get install python3
+  - sudo add-apt-repository -y ppa:fkrull/deadsnakes
+  - sudo apt-get update -qq
+  - sudo apt-get install -y python3.3 python3
 
 script:
   - make -C unix
-  - cd tests && ./run-tests basics/[a-eistuw]*.py
+  - cd tests && MICROPY_CPYTHON3=python3.3 ./run-tests
+
+after_failure: for exp in *.exp; do testbase=$(basename $exp .exp); echo -e "\nFAILURE $testbase"; diff $testbase.exp $testbase.out; done