Startup time measurement

[Mandy Chung]

I instrumented the VM and core libs trying to get better understanding 
where the times are spent during class loading.

Here is my initial set of result to determine the class data sharing 
impact to class loading.
   http://cr.openjdk.java.net/~mchung/startup_measurement/startup.result.b61

It includes the results with security manager enabled and I have to 
check which applications already enable security manager in the default 
setting before doing the comparison.

Mandy