Metacat

Updated configuration documentation in admin guide for Metacat DataONE section. Changed links in configuration utility to point at the Admin guide.

edited the configuration docs, swapped in new fully-configured screen shot
http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5516

marked the properties that are only editable manually in metacat.properties
http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5516

format xml/eml table -- added missing row delimiter
http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5516

some minimal editing on replication configuration -- bulk of it had been done in the Word doc before rst conversion
http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5516

add note to enable ssl mod

-include instructions about enabling AJP connector in Tomcat config
-use postgres 8.4
-include hint to disable default Apache site (otherwise the knb config never gets used!)

include instructions for installing Sun's Java6 JDK since it is no longer in apt-get repos

make it clear that the Apache config files are samples and may need to be modified for different servers
http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5516

update system requirements to be more reasonable