* Added "version" and "majorversion" entities to top-level index.xml
so document writers can just use "&version;" or "&majorversion;"
to have that automatically substituted during the output to other
formats.
* Updated most documents to make use of these new entities. Left some
unchanged documents under the kernel documentation.
* Updated the openacs.xsl to take my e-mail off the mailto. I get too
much spam already.
* Changed to "Open Architecture Community System" wherever I could find
(thank goodness for M-x query-replace :-))
* Regenerated the html docs.
