now working on v0.1.1
correctly parse numeric values

Using only parseInt made floating values fail (e.g. 1e3), so to correct
there is now an additional check to see if the value is an octal or hex.
now working on v0.1.2
exec now returns object but doesn't push to queue

Before, filtering sync tests with --exec would cause them to return
undefined. This would cause operations to fail, such as using .complete.
Now they still return the sync object, but aren't pushed to the queue.
now working on v0.1.3
simplify numeric paramater parsing

In latest v8, strings that start with '0' are no longer treated as
octals. So also going to drop support.

See: http://code.google.com/p/v8/issues/detail?id=1645
Merge branch 'v0.1'