changing travis command after fixes in test_wrapstruct

Author: djarecka

.travis.yml

@@ -130,11 +130,7 @@ script:
           cd for_testing
           cp ../.coveragerc .
           nosetests --with-doctest --with-coverage --cover-package nibabel nibabel
-          pytest -v ../nibabel/tests/test_a*.py ../nibabel/tests/test_b*.py ../nibabel/tests/test_c*.py ../nibabel/tests/test_d*.py
-          pytest -v../nibabel/tests/test_e*.py ../nibabel/tests/test_f*.py ../nibabel/tests/test_h*.py
-          pytest -v../nibabel/tests/test_i*.py ../nibabel/tests/test_k*.py ../nibabel/tests/test_l*.py ../nibabel/tests/test_m*.py
-          pytest -v../nibabel/tests/test_n*.py ../nibabel/tests/test_o*.py ../nibabel/tests/test_p*.py ../nibabel/tests/test_q*.py
-          pytest -v ../nibabel/tests/test_w*.py
+          pytest -v ../nibabel/tests
       else
           false
       fi