Fix transparent background on launcher icon

This was generated by:
http://android-ui-utils.googlecode.com/hg/asset-studio/dist/icons-launcher.html

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Replace ic_stat_vpn icon

This icon is used for "user input" notifications.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Delete now-unused LogWindow.java

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
LogFragment: For Reconnect, use "refresh" icon instead of "rotate" icon

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
screenshots: Update to match new icon

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>