ENH: Adds TravisCI file

Author: ellisdg

.travis.yml

@@ -0,0 +1,12 @@
+language: python
+python:
+  - "2.7"
+  - "3.5"
+  - "3.6"
+install:
+  - "pip install codecov"
+  - "pip install -r requirements.txt"
+script:
+  - "export PYTHONPATH=${PWD}:${PYTHONPATH}"
+  - "nosetests --with-coverage --cover-package=bidsmanager -w ./test test"
+  - "codecov"