Add -t option to allow easy test selection.
Action verbose option correctly.
Tweak operation counts. Add empty and new instances tests.
Enable comparisons across different warp factors. Change version.
diff --git a/Tools/pybench/Imports.py b/Tools/pybench/Imports.py
index 85eb604..b953919 100644
--- a/Tools/pybench/Imports.py
+++ b/Tools/pybench/Imports.py
@@ -8,7 +8,7 @@
 
     version = 0.1
     operations = 5 * 5
-    rounds = 20000
+    rounds = 2000*15
 
     def test(self):
 
@@ -53,7 +53,7 @@
 
     version = 0.1
     operations = 5 * 5
-    rounds = 20000
+    rounds = 200*20
 
     def test(self):
 
@@ -97,7 +97,7 @@
 
     version = 0.1
     operations = 5 * 5
-    rounds = 20000
+    rounds = 200*17
 
     def test(self):