update .travis regariding ci

Author: chfw

.travis.yml

@@ -1,3 +1,4 @@
+sudo: false
 language: python
 notifications:
   email: false
@@ -8,10 +9,9 @@ python:
   - 2.7
   - 3.3
   - 3.4
+  - 3.5
   - pypy
 install:
-  - pip install git+https://github.com/chfw/pyexcel-io.git  
-  - pip install git+https://github.com/chfw/pyexcel.git
   - pip install -r tests/requirements.txt
 script:
   make test

tests/requirements.txt

@@ -3,5 +3,6 @@ rednose
 nose-cov
 python-coveralls
 coverage
-pyexcel-xls
+pyexcel-xls>=0.0.7
+pyexcel>=0.1.7
 SQLAlchemy