crypto/tls: add support for TLS 1.1. (CL 7872043).
encoding/csv: always allow trailing commas (CL 12294043)
encoding/json: accept but correct invalid UTF-8 in Marshal (CL 11211045).
+encoding/json: always escape ampersands (CL 12708044).
encoding/xml: allow attributes stored in pointers to be marshaled (CL 8653047).
flag: add Getter interface (CL 10472043).
flag: export commandLine (now CommandLine) (CL 12587043).