A tag is required to reuse Elasticsearch breaking changes in the Stack
Guide. To display properly, the breaking changes must use external
links rather than xrefs.
This PR correctly places those tags for reuse. It also replaces
several xrefs with external links for reuse.
This commit removes support for JAVA_HOME. As we previously deprecated
usage of JAVA_HOME to override the path for the JDK, this commit follows
up by removing support for JAVA_HOME. Note that we do not treat
JAVA_HOME being set as a failure, as it is perfectly reasonable for a
user to have JAVA_HOME configured at the system level.
James Rodewig
Jason Tedor
debadair
James Rodewig
Lisa Cawley