Rephrase deprecation warning since 5.0 has been released.

IPython/testing/decorators.py

@@ -77,7 +77,7 b' def apply_wrapper(wrapper, func):'
     This will ensure that wrapped functions can still be well introspected via
     IPython, for example.
     """
-    warnings.warn("The function `apply_wrapper` is deprecated and might be removed in IPython 5.0",
+    warnings.warn("The function `apply_wrapper` is deprecated since IPython 4.0",
             DeprecationWarning, stacklevel=2)
     import nose.tools
 
@@ -129,7 +129,7 b' def make_label_dec(label, ds=None):'
     True
     """
 
-    warnings.warn("The function `make_label_dec` is deprecated and might be removed in IPython 5.0",
+    warnings.warn("The function `make_label_dec` is deprecated since IPython 4.0",
             DeprecationWarning, stacklevel=2)
     if isinstance(label, string_types):
         labels = [label]
@@ -286,7 +286,7 b' def decorated_dummy(dec, name):'
     import IPython.testing.decorators as dec
     setup = dec.decorated_dummy(dec.skip_if_no_x11, __name__)
     """
-    warnings.warn("The function `decorated_dummy` is deprecated and might be removed in IPython 5.0",
+    warnings.warn("The function `decorated_dummy` is deprecated since IPython 4.0",
         DeprecationWarning, stacklevel=2)
     dummy = lambda: None
     dummy.__name__ = name
@@ -320,7 +320,7 b' skip_if_no_x11 = skipif(_x11_skip_cond, _x11_skip_msg)'
 
 # not a decorator itself, returns a dummy function to be used as setup
 def skip_file_no_x11(name):
-    warnings.warn("The function `skip_file_no_x11` is deprecated and might be removed in IPython 5.0",
+    warnings.warn("The function `skip_file_no_x11` is deprecated since IPython 4.0",
             DeprecationWarning, stacklevel=2)
     return decorated_dummy(skip_if_no_x11, name) if _x11_skip_cond else None
 
@@ -369,7 +369,7 b' def onlyif_any_cmd_exists(*commands):'
     """
     Decorator to skip test unless at least one of `commands` is found.
     """
-    warnings.warn("The function `onlyif_any_cmd_exists` is deprecated and might be removed in IPython 5.0",
+    warnings.warn("The function `onlyif_any_cmd_exists` is deprecated since IPython 4.0",
             DeprecationWarning, stacklevel=2)
     for cmd in commands:
         if which(cmd):