[Seaside] Both close and shortcut close tags in pretty printing

[Julian Fitzell]

hmm... ok, I fixed this in our monticello repository (Seaside2.5a2-jf.4) 
but the factoring here all looks a bit weird.

I wrote this stuff originally but now it all has Avi's initials and I 
can't figure out what he's changed and what is marked as his just from 
merging.  Anyway, I'm trying to figure out how this works at the 
moment--I don't think WAPrettyPrinter needs to be a component, so 
probably better to inherit from something else to avoid duplicated code.

But the immediate bug is fixed anyway.. :)

Julian

C. David Shaffer wrote:
> In the lastest release the input tag generation seems to generate too 
> many close tag markers when pretty printing HTML which contains shortcut 
> close markers.  It uses both the shortcut and the normal end tag.  I 
> don't think that it did this in the first 2.5a release (but I could be 
> mistaken).  Anyway, the actual HTML looks fine so it appears to be a bug 
> in the pretty printing.  Here's an example:
> 
> <input name="_s" id="_s" value="GJCdwxuDbxYcwuab" type="hidden" /></input>
> <input name="_k" id="_k" value="JJvcKxKB" type="hidden" /></input>
> 
> David
> 
> 
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