godoc: static ids should be #lowercase so they don't collide with names like #Index. Fixes issue 2970.
godoc: static ids should be #lowercase
so they don't collide with names like #Index.
Fixes issue 2970.

R=golang-dev, bradfitz
CC=golang-dev
http://codereview.appspot.com/5655066

rdp/rogerpack2005-golang,rdp/rogerpack2005-golang,bryanxu/go-zh,mhennings/marcohennings-go,webfd/go-zh,bryanxu/go-zh,scirelli/scirelli-go,rdp/rogerpack2005-golang,rflanagan/reginaldflanagan-project1,sanjosh/sanjos100-tipc,glycerine/jeaten-go-arrayof-structof,bryanxu/go-zh,rflanagan/reginaldflanagan-project1,Triskite/willstone-goclone,mhennings/marcohennings-go,rdp/rogerpack2005-golang,mhennings/marcohennings-go,Triskite/willstone-goclone,d0f/go-zh,webfd/go-zh,sanjosh/sanjos100-tipc,mhennings/marcohennings-go,sanjosh/sanjos100-tipc,rdp/rogerpack2005-golang,mhennings/marcohennings-go,glycerine/jeaten-go-arrayof-structof,scirelli/scirelli-go,Triskite/willstone-goclone,d0f/go-zh,d0f/go-zh,glycerine/jeaten-go-arrayof-structof,d0f/go-zh,rflanagan/reginaldflanagan-project1,scirelli/scirelli-go,d0f/go-zh,sanjosh/sanjos100-tipc,mhennings/marcohennings-go,rflanagan/reginaldflanagan-project1,bryanxu/go-zh,Triskite/willstone-goclone,scirelli/scirelli-go,webfd/go-zh,scirelli/scirelli-go,scirelli/scirelli-go,webfd/go-zh,rflanagan/reginaldflanagan-project1,d0f/go-zh,glycerine/jeaten-go-arrayof-structof,glycerine/jeaten-go-arrayof-structof,bryanxu/go-zh,Triskite/willstone-goclone,scirelli/scirelli-go,Triskite/willstone-goclone,rflanagan/reginaldflanagan-project1,rdp/rogerpack2005-golang,mhennings/marcohennings-go,webfd/go-zh,glycerine/jeaten-go-arrayof-structof,webfd/go-zh,mhennings/marcohennings-go,sanjosh/sanjos100-tipc,bryanxu/go-zh,webfd/go-zh,Triskite/willstone-goclone,webfd/go-zh,bryanxu/go-zh,rflanagan/reginaldflanagan-project1,bryanxu/go-zh,sanjosh/sanjos100-tipc,d0f/go-zh,rdp/rogerpack2005-golang,sanjosh/sanjos100-tipc,d0f/go-zh,rflanagan/reginaldflanagan-project1,glycerine/jeaten-go-arrayof-structof,glycerine/jeaten-go-arrayof-structof,scirelli/scirelli-go,Triskite/willstone-goclone,rdp/rogerpack2005-golang,sanjosh/sanjos100-tipc