Metacat

apply Gastil's edits. http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5516

add section about configuring the metacat.properties with the paths to the server certificate and key

Fixed formatting problem in a documentation file.

add section about importing self-signed certificates into the Java keystore (now that we use strict verification on the java client side when calling replication endpoints).

a few additional notes about Metacat replication configuration.

It looks like jk.conf and workers.properties were moved in the scripts dir: update the install docs accordingly.

Fixed a minor typo in the tomcat config section.

add note about https://redmine.dataone.org/issues/2451 to the documentation

update docs to match node registration behavior: we do not assign them nodeIds at registration

Set mime type on images.