Fixing how module size get reported when size is > 1M

Hello @nicks, 

Please review the following commits I made in branch 'sho-fixModules'.


Quick fix so that big numbers don't cause the module dependency diagram to fail.

FWIW, I wasn't sure how to run tests. I doubt they would break with a
fix so small, but you never know.

Also, I didn't include the new package/bin/plovr.jar in this commit on
the theory that there might be a more official way that is supposed to
be built, although I can.



12ccea5875dff6e6bd3788d705e2483382b8a1d2 (2013-12-16 16:28:38 -0800)
Fixing how module size get reported when size is > 1M

R=@nicks