Convert all jars and wars to compile to 1.6 target,

except for the following which are used by android,
to maintain compatibility with very old phones, for now:

	addressbook.war
	BOB.jar
	i2p.jar
	i2ptunnel.jar
	mstreaming.jar
	router.jar
	streaming.jar

apps/systray/java/build.xml

@@ -13,8 +13,8 @@
             srcdir="./src"
             debug="true"
             deprecation="on"
-            source="1.5"
-            target="1.5"
+            source="1.6"
+            target="1.6"
             destdir="./build/obj"
             includeAntRuntime="false"
             includes="**/*.java"