Bump the version # to reflect the latest pull of closure-compiler

Hello @nicks, 

Please review the following commits I made in branch 'b20131213'.

e7c87663375dd2bbbbae5f4836bba2512c8515fc (2013-12-13 17:08:23 -0500)
Bump the version # to reflect the latest pull of closure-compiler

R=@nicks