fixing travis

.travis.yml

@@ -1,12 +1,16 @@
 language: python
 python:
-  - "2.6"
   - "2.7"
-  - "3.3"
+  - "3.5"
+
+matrix:
+  allow_failures:
+    - python: "3.5"
+
 # command to install dependencies
 install:
-  - pip install curdling
-  - curd install -r requirements.txt
+  - pip install -U pip
+  - pip install -r requirements.txt
 
 # command to run tests
 script: make test