messages.xml: Capitalize CGIAR Research Program in Advanced Search Filters
discovery.xml: Enable CRP Subject search filter for homepageConfiguration

It seems the OpenSearch functionality uses the Discovery search
configuration from the homepageConfiguration block, or at least the
one you have configured as "site" in the Discovery mapping, ie:

<entry key="site" value-ref="homepageConfiguration" />
XMLUI: Revert to non-caching pipeline

This was an issue in DSpace 1.7/1.8... but we've got DSpace 4.2 plus
an entirely new JDK, Tomcat, Linux kernel, etc.  I'm reversing this
to see if the caching bug is still an issue.

Use the following command to do it:

	find dspace/modules/xmlui/src/main/webapp/themes -iname sitemap.xmap -exec sed -i 's/<map:pipeline type="noncaching">/<map:pipeline>/' {} \;