* I2PAppContext: New getProperties() method

* i2ptunnel:
      - Use context properties as defaults

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnel.java

@@ -118,8 +118,8 @@ public class I2PTunnel implements Logging, EventDispatcher {
         _tunnelId = ++__tunnelId;
         _log = _context.logManager().getLog(I2PTunnel.class);
         _event = new EventDispatcherImpl();
-        Properties p = new Properties();
-        p.putAll(System.getProperties());
+        // as of 0.8.4, include context properties
+        Properties p = _context.getProperties();
         _clientOptions = p;
         _sessions = new ArrayList(1);
         

core/java/src/net/i2p/I2PAppContext.java

@@ -483,6 +483,21 @@ public class I2PAppContext {
         return names;
     }
     
+    /**
+     * Access the configuration attributes of this context, listing the properties 
+     * provided during the context construction, as well as the ones included in
+     * System.getProperties.
+     *
+     * @return new Properties with system and context properties
+     * @since 0.8.4
+     */
+    public Properties getProperties() { 
+        Properties rv = new Properties();
+        rv.putAll(System.getProperties());
+        rv.putAll(_overrideProps);
+        return rv;
+    }
+    
     /**
      * The statistics component with which we can track various events
      * over time.