Section's page split control

[michalfita]

Generated epub book splits page at each section, not only first level (desired for chapters). This is not natural, it would be desired there's some control over the level of nested section which start a new page and which don't.

Typical books start each chapter on a new page (quite often odd, but that doesn't matter much in e-book), then sections are visual indication withing flow on the page.

The other part is all sections are centered, what again is not always desired, but as that may be CSS specific it's part of a different problem.