fixed coredump in concat_ws
sql/item_strfunc.h
fixed coredump in concat_ws
sql/mini_client.cc
added mc_mysql_error()
sql/mini_client.h
added mc_mysql_errno()
sql/mysqlbinlog.cc
fixed bug in --postion for local files
sql/slave.cc
more verbose message on bad net reads
sql/sql_repl.cc
send errno on error in mysql_binlog_send
keep vio from being freed twice when we are low on memory
mysys/safemalloc.c
changes for --safemalloc-mem-limit
sql/mini_client.cc
keep vio from being freed twice
sql/mysqld.cc
changes for --safemalloc-mem-limit
sql/slave.cc
prevent closing connection twice
sql/sql_string.h
shrink() did not work right when my_realloc() failed
