Er yes. Let's commit the headers, too, shall we?
Er yes. Let's commit the headers, too, shall we?

svn path=/trunk/hubbub/; revision=4913

Achal-Aggarwal/hibbub,servo/libhubbub,adamwight/wmf-parsoid-libhubbub,adamwight/wmf-parsoid-libhubbub,Achal-Aggarwal/hibbub,servo/libhubbub,adamwight/wmf-parsoid-libhubbub,prepare/netsurf_libhubbub,adamwight/wmf-parsoid-libhubbub,prepare/netsurf_libhubbub,prepare/netsurf_libhubbub,servo/libhubbub,prepare/netsurf_libhubbub,Achal-Aggarwal/hibbub,prepare/netsurf_libhubbub,servo/libhubbub,prepare/netsurf_libhubbub,servo/libhubbub,Achal-Aggarwal/hibbub,adamwight/wmf-parsoid-libhubbub