Server tests have been failing on this test:
org.jboss.tools.as.test.core.catalog.CatalogMissingEntriesTest.testMissingEntries (from org.jboss.tools.as.test.core.ASToolsTestSuite)
/schema/dtd/properties.dtd is not found in plugin.xml
/schema/dtd/datatypes.dtd is not found in plugin.xml

http://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jbosstools-server_master/lastCompletedBuild/testReport/org.jboss.tools.as.test.core.catalog/CatalogMissingEntriesTest/testMissingEntries/

Sorry if this has been reported elsewhere, I couldn't find it.

Not sure if it's too late to fix in Alpha1 or not. Up to you.