Updated Travis configuration for package rename

Author: IanLee1521

.travis.yml

@@ -14,9 +14,9 @@ install:
   - pip install -e .
   - pip list
 script:
-  - python pep8.py --testsuite testsuite
-  - python pep8.py --statistics pep8.py
-  - python pep8.py --doctest
+  - python pycodestyle.py --testsuite testsuite
+  - python pycodestyle.py --statistics pep8.py
+  - python pycodestyle.py --doctest
   - python setup.py test
 
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