#13 Rest of my indentation fixes

[Glen Peterson]

Fixes for a number of indentation issues. The main
improvements are:

* Tags within comments and cdata sections will no
longer affect indentation outside of those sections.

* Indent-region will no longer affect text inside
comments, cdata, and <xsl:text> sections. You can
change the indentation of these sections by pressing
the tab key manually or hitting delete.

* Made return take you to the (more or less) proper
indentation for the next line.

* Wrapped the yank function to indent the text after it
is pasted.

* Fixed numerous typos in my numerous comments

[Glen Peterson]

xslide 0.2.3 indentation fixes "B"

[Glen Peterson]

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I went over this with a finer tooth comb and used it for a
week to write xsl without finding significant bugs. I made
some changes, mostly to make the merge go smoother (it's
kind of a big one). I have only tested this version on XEmacs
under Windows.

[Glen Peterson]

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I just tested in GNU and X emacs under Linux and it compiled
and worked great. Merge away!

[Glen Peterson]

xslide 0.2.3 indentation fixes "C"

[Glen Peterson]

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Here's the same fixes with the indentation variables and
functions split into a different file. I also deleted some
unused stuff while I was at it. Nothing too major.

I have a question about authorship: I just looked through
xslide-indent.el and I wrote everything in there with the
possible exception of a line or two in a function or two. But
it's all based on prior art from xslide.el. I left everyone's name
as contributors anyway and listed myself next to Tony as an
author. That's really not accurate but I wanted to err on the
side of giving too much credit rather than not enough. What
should I do here?

[Glen Peterson]

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Merged.