ClojureScriptLanguage: add clojure as alias

Without this, only "Clojure" with a capital C is
accepted as a valid name for this script language.

Author: ctrueden

src/main/java/org/scijava/plugins/scripting/clojure/ClojureScriptLanguage.java

@@ -49,6 +49,11 @@
 @Plugin(type = ScriptLanguage.class, name = "Clojure")
 public class ClojureScriptLanguage extends AbstractScriptLanguage {
 
+	@Override
+	public String getEngineName() {
+		return "clojure";
+	}
+
 	@Override
 	public List<String> getExtensions() {
 		return Arrays.asList("clj");