Adding travis.yml file for Travis continuous intregration service, may not work yet

.travis.yml

@@ -0,0 +1,12 @@
+language: python
+python:
+  - "2.7"
+# command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
+install: 
+  - "pip install scipy>=0.10.1" 
+  - "pip install numpy>=1.6.2" 
+  - "pip install sphinx"
+  - "pip install ./"
+# command to run tests, e.g. python setup.py test
+script: 
+  - "nosetests --with-xcoverage --with-xunit --cover-package=GPy --cover-erase GPy/testing"