[coverage] some more restrictions

.coveragerc

@@ -9,17 +9,16 @@ omit = ./GPy/testing/*.py, travis_tests.py, setup.py, ./GPy/__version__.py
 exclude_lines =
     # Have to re-enable the standard pragma
     pragma: no cover
-
+    verbose
 
     # Don't complain about missing debug-only code:
     if self\.debug
 
     # Don't complain if tests don't hit defensive assertion code:
-    raise AssertionError
-    raise NotImplementedError
-    raise NotImplemented
+    raise
     except
     pass
+    Not implemented
 
     # Don't complain if non-runnable code isn't run:
     if 0: