New beta release plan

As quite a number of issues, including bugs and small (but annoying) misfeatures, showed up during thorough testing of the last beta, The original plan to release the final with only few fixes won't hold.

There are already quite a number of considerable fixes/improvements we've made over the past days, and there is still a whole bunch of pending issues. Thus, there will be at least one more beta release, maybe more. Stay tuned.