Add convenience for-release make target

reviewed-by: jerboaa
review-thread: http://icedtea.classpath.org/pipermail/thermostat/2014-November/011824.html

Makefile

@@ -28,6 +28,9 @@ endif
 # Default to just building core
 all: core
 
+# At release, also check archetypes
+for-release: core verify-archetypes
+
 core:
 	$(MAVEN) -f $(POM) $(MAVEN_FLAGS) $(MAVEN_SKIP_TEST) clean $(GOAL) $(MAVEN_JAVADOC)
 
@@ -67,4 +70,4 @@ plugin_docs.html:
 	$(XSLTPROC) distribution/tools/plugin-docs-html.xslt merged-plugin-docs.xml > $@
 
 # We only have phony targets
-.PHONY:	all core verify-archetype-ext verify-archetype-multimodule core-install create-repo-dir clean-repo echo-repo plugin-docs
+.PHONY:	all for-release core verify-archetypes verify-archetype-ext verify-archetype-multimodule skip-tests-and-install core-install create-repo-dir clean-repo echo-repo plugin-docs

distribution/tools/update-version

@@ -152,7 +152,9 @@ echo ""
 find_and_warn_incomplete
 echo ""
 echo "Before you commit, tag, or release, be sure to run a full build and"
-echo "run all tests.  The easiest way to do this is to run \"make\" from"
-echo "the root of the repository."
+echo "run all tests.  The easiest way to do this is to run \"make for-release\""
+echo "from the root of the repository.  In addition to the full build with"
+echo "unit and integration tests, this also runs tests which verify the maven"
+echo "archetypes that plugin developers rely on to set up their projects."
 exit 0