- put error messages into the TOC so they get a sidebar toc entry
- put error messages into the TOC so they get a sidebar
toc entry

Change-Id: I5cd98e0bf396afd10a431af8a16a7c654f7a5ca7

zzzeek/sqlalchemy,j5int/sqlalchemy,sqlalchemy/sqlalchemy,j5int/sqlalchemy,monetate/sqlalchemy,wujuguang/sqlalchemy,monetate/sqlalchemy,graingert/sqlalchemy,graingert/sqlalchemy,wujuguang/sqlalchemy