update soynode to use a newer version of closure-templates

Hello @nicks, 

Please review the following commits I made in branch 'nick-update'.

3665fa511c6a64e0c750b10fb67fb88a7166b6a3 (2014-08-19 13:20:32 -0400)
update soynode to use a newer version of closure-templates

R=@nicks