#60 Option to treat method calls as block boundaries

[imei]

It would be nice to have an option for Emma to treat
method calls as block boundaries.

I'm using a library that, unfortunately, has a method
that throws an Exception each time as part of the
normal flow.

So in my code, any lines preceding that method call are
never considered to be covered by Emma.

... //preceding lines are never Considered to be covered
library.foo(); //throws an exception

Please consider adding a flag to enable treating method
calls as block boundaries.

Thanks!