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/Strings.py b/Tools/pybench/Strings.py
index b01843a..43309da 100644
--- a/Tools/pybench/Strings.py
+++ b/Tools/pybench/Strings.py
@@ -5,7 +5,7 @@
 
     version = 0.1
     operations = 10 * 5
-    rounds = 60000
+    rounds = 6000
 
     def test(self):
 
@@ -87,7 +87,7 @@
 
     version = 0.2
     operations = 10 * 5
-    rounds = 200000
+    rounds = 2000*22
 
     def test(self):
 
@@ -169,7 +169,7 @@
 
     version = 0.1
     operations = 10 * 5
-    rounds = 200000
+    rounds = 2000*28
 
     def test(self):
 
@@ -251,7 +251,7 @@
 
     version = 0.1
     operations = 10 * 5
-    rounds = 80000
+    rounds = 800*32
 
     def test(self):
 
@@ -326,7 +326,7 @@
 
     version = 0.1
     operations = 5 * 7
-    rounds = 100000
+    rounds = 1000*15
 
     def test(self):
 
@@ -389,7 +389,7 @@
 
         version = 0.1
         operations = 3 * (5 + 4 + 2 + 1)
-        rounds = 70000
+        rounds = 14000
 
         def test(self):
 
@@ -462,7 +462,7 @@
 
         version = 0.1
         operations = 10 * 7
-        rounds = 80000
+        rounds = 800*24
 
         def test(self):