New icons for forward one screen, back one screen, pause, read to end and count from end.
I think the latter two are muuuuch more intuitive like this, I hope everybody will agree.

SVG sources included, based on dialog-information.svg from oxygen, but largely simplified because there were aliasing problems around the edges at such small sizes when using all the gradients and shadows of the original icons.

There is more work left on icons:
- cleanup old icons which we no longer use
- make a couple new ones, right now export vectors to disk, export and log entry all have the same...