New joyride build 1683

[Build Announcer v2]

http://xs-dev.laptop.org/~cscott/olpc/streams/joyride/build1683

Changes in build 1683 from build: 1682

Size delta: 0.00M

-sugar-presence-service 0.75.0-1
+sugar-presence-service 0.75.1-1.olpc2

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