re parallelize tests

Author: jsalvatier

.travis.yml

@@ -23,6 +23,11 @@ install:
   - python setup.py build_ext --inplace
 
 env:
+  - TESTCMD="nosetests -vv --with-timer -e test_examples -e test_distributions"
+  - TESTCMD="nosetests -vv --with-timer pymc3.tests.test_distributions"
+  - TESTCMD="nosetests -vv --with-timer pymc3.tests.test_examples:test_examples0"
+  - TESTCMD="nosetests -vv --with-timer pymc3.tests.test_examples:test_examples1"
+  - TESTCMD="nosetests -vv --with-timer pymc3.tests.test_examples:test_examples2"
   - DEPS="ipython pyzmq numpy scipy nose matplotlib pandas Cython patsy statsmodels"
 
 script: