Updates pull request from Roman Tsypuk to convert the build system from

ant to gradle.  Removes linux and windows application launch scripts and
produces an executable jar with all resources included.

src/main/java/io/github/dsheirer/alias/action/AliasAction.java

@@ -0,0 +1,58 @@
+/*******************************************************************************
+ * sdrtrunk
+ * Copyright (C) 2014-2017 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ ******************************************************************************/
+package io.github.dsheirer.alias.action;
+
+import io.github.dsheirer.alias.Alias;
+import io.github.dsheirer.alias.action.clip.ClipAction;
+import io.github.dsheirer.alias.action.script.ScriptAction;
+import io.github.dsheirer.message.Message;
+import io.github.dsheirer.alias.action.beep.BeepAction;
+
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlSeeAlso;
+import javax.xml.bind.annotation.XmlTransient;
+import java.util.concurrent.ScheduledExecutorService;
+
+/**
+ * Alias action defines an action to execute when an alias is detected active.
+ */
+@XmlSeeAlso( { BeepAction.class, ClipAction.class, ScriptAction.class } )
+@XmlRootElement( name = "action" )
+public abstract class AliasAction
+{
+	public AliasAction()
+	{
+	}
+
+	@XmlTransient
+	public abstract AliasActionType getType();
+	
+	/**
+	 * Task to execute when an alias action is defined.  The message argument is
+	 * the original message containing one or more aliases that have an alias
+	 * action attached.  The alias argument is the parent alias containing the
+	 * alias action.
+	 */
+	public abstract void execute(ScheduledExecutorService scheduledExecutorService, Alias alias, Message message );
+
+	/**
+	 * Dismiss a persistent alias action
+	 */
+	public abstract void dismiss( boolean reset );
+}