Allow any options to be passed through test function

IPython/testing/__init__.py

@@ -13,17 +13,18 b''
 #-----------------------------------------------------------------------------
 
 # User-level entry point for testing
-def test(all=False):
+def test(**kwargs):
     """Run the entire IPython test suite.
 
-    For fine-grained control, you should use the :file:`iptest` script supplied
-    with the IPython installation."""
+    Any of the options for run_iptestall() may be passed as keyword arguments.
+    """
 
     # Do the import internally, so that this function doesn't increase total
     # import time
     from .iptestcontroller import run_iptestall, default_options
     options = default_options()
-    options.all = all
+    for name, val in kwargs.items():
+        setattr(options, name, val)
     run_iptestall(options)
 
 # So nose doesn't try to run this as a test itself and we end up with an