Update to Google App Engine SDK 1.7.7

Signed-off-by: Greg Meiste <greg.meiste@gmail.com>
Update race names and logos

Signed-off-by: Greg Meiste <greg.meiste@gmail.com>
Add support for friend feature

Signed-off-by: Greg Meiste <greg.meiste@gmail.com>
Switch to Java 7 as mandated by new GAE 1.7.7 SDK

Signed-off-by: Greg Meiste <greg.meiste@gmail.com>
Deploy version 25 to GAE

Signed-off-by: Greg Meiste <greg.meiste@gmail.com>