Spin Rewriter is more robust now

As part of our on-going efforts to make Spin Rewriter is robust as possible, we have introduced a couple of changes to the underlying algorithms and to the user interface. Our server load should be more consistent with less blocking when a random spike in traffic occurs, and users will give much more detailed reports about various issues that arise every now and then, along with suggestions about overcoming these issues.

Oh, and don't get us wrong - Spin Rewriter is still working perfectly fine 99% of the time. 😃 We're just committed to delivering the best possible product! 😃