#44 new help browser

[Alexandre Prokoudine]

Please consider reusing help browser from Scribus. That
will give LPROF lightning fast internal help browser
with search and bookmarking capabilities.

Craig Bradney says its XML parser has to be rewritten
to allow more than 3 levels of menu, but since >3
levels is not recommended in docs and you don't have
such docs anyway, that shouldn't affect LPROF (in my POV).

[Hal Engel]

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I think in the long run it would be good to do something
with the help browser. The current implementation uses QTs
QTAssistantClient and it is not very elegant. We picked
this mostly because it was easy to implement and would allow
us to get a help system for users out sooner rather than later.

The current help browser is HTML based. I have someone who
has volumteered to be in charge of documentation and I
expect that we will at some point be doing some redesign
work in this area. But he has only been with us for a few
weeks and there is lots of work involved. The 1.13 time
frame is probably about right for this.