April 2010 Code Base

Now uses page-aligned memory allocation and Sandoval's scheme 
for finding minimal times.

-- Need to remove the code that extracts power-of-two points.
-- Need to test for robust analyses.
-- Need to devise a test to avoid the L1 effect on Nehalem 
   at 1 MB.  (Maybe use the straight BC test and look for 
   a variation of more than 2%?)
