Use image buttons for ordering summary bar sections (images courtesy of dr|z3d)

...ole/java/src/net/i2p/router/web/ConfigSummaryHandler.java

...terconsole/java/src/net/i2p/router/web/SummaryHelper.java

apps/routerconsole/jsp/configsidebar.jsp

...r/resources/themes/console/classic/images/move_bottom.png

...ler/resources/themes/console/classic/images/move_down.png

...ller/resources/themes/console/classic/images/move_top.png

...aller/resources/themes/console/classic/images/move_up.png

installer/resources/themes/console/dark/console.css

...ller/resources/themes/console/dark/images/move_bottom.png

installer/resources/themes/console/dark/images/move_down.png

installer/resources/themes/console/dark/images/move_top.png

installer/resources/themes/console/dark/images/move_up.png

...ler/resources/themes/console/light/images/move_bottom.png

...aller/resources/themes/console/light/images/move_down.png

installer/resources/themes/console/light/images/move_top.png

installer/resources/themes/console/light/images/move_up.png

.../resources/themes/console/midnight/images/move_bottom.png

...er/resources/themes/console/midnight/images/move_down.png

...ler/resources/themes/console/midnight/images/move_top.png

...ller/resources/themes/console/midnight/images/move_up.png