v3.3.1

So, back in May I released v3.3.0, which was a huge new release as the linked article explains. And, when you make a lot of changes, and typically, fixes and improvements, sometimes, you do things wrong. Sometimes its more serious than others. The main driver behind this new release of v3.3.1 was to fix a problem that developed in v3.3.0 with regard to exporting, as HTML, very large volumes of data. I'm talking hundreds of thousands, or millions, of rows. Ironically, I thought I had actually fixed a memory and stability problem, but in fact, I made it worse! [...]