Temp gdata http

This changes picasa and youtube data to be synced over http. Access tokens are still exchanged over https.

This is required for the current version of node because SSL cannot connect for some google URLs.

See https://github.com/joyent/node/issues/4771

This should be reverted when we upgrade node to v0.10

This changes the scope of youtube and picasa to be http…

this is required to get access tokens that will work over http. Old
access tokens with a https scope will not work so *old accounts won't
be able to sync*, but auth will work since self will be able to sync
with the new access tokens

however, http access tokens work over https so when we can change back
things won't be able to sync

we should still revert this asap so we have the most secure access
tokens