data: Added json tags to Site struct
data: Added json tags to Site struct

R=gavaletz
CC=gavaletz, gsoc-2013
https://codereview.appspot.com/13264045

Committer: Eric Gavaletz <d067252dbc828cb4cf2a67fc064856425e7018a7@gmail.com>

aquam8/mlab-ns2,sergle/mlab-ns2,yinghau76/mlab-ns2