Metacat

Add code to get all doc ids in the solr server.

Add a remove(List) method in the class and an obsoletes list parameter in the update method.

Read the solr configuration file name and collection name from the property file.

Print out the solr query result in the xml format.

naive version of SolrServerFactory - no reflection. It returns an EmbeddedSolrServer implementation based on the solr.homeDir set in Settings class. https://projects.ecoinformatics.org/ecoinfo/issues/5883

simplify testing with embedded solr server locations -- no need to copy solr-home or set system properties. Still more to do (factory method) but this is getting cleaner.

rely on Settings loaded from test resources config rather than hardcoding the paths in code. https://projects.ecoinformatics.org/ecoinfo/issues/5918

use integration-test ("mvn verify") to test things that require Metacat to be running. These classes should end be named "*IT.java" and unit tests that do not require metacat to be running can be named "*Test.java" - https://projects.ecoinformatics.org/ecoinfo/issues/5918

Comment out the testRemove method temporarily.

Temporarily to comment out the remove test.