Changed build matrix for travis

.travis.yml

@@ -6,8 +6,18 @@ python:
   - pypy
   - 3.3
 
+env:
+  - REQUIREMENTS=lowest
+  - REQUIREMENTS=devel
+
+matrix:
+  exclude:
+    # Python 3 support currently does not work with lowest requirements
+    - python: "3.3"
+      env: REQUIREMENTS=lowest
+
 install:
-  - pip install git+git://github.com/mitsuhiko/werkzeug.git#egg=Werkzeug
+  - pip install -r .travis-$REQUIREMENTS-requirements.txt
   - pip install --editable .
 
 script: make test