modified:   storage/connect/ha_connect.cc

- Regard columns with binary charset as string (was binary)
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/tabmysql.cpp
  modified:   storage/connect/tabutil.cpp

- Support length 0 for CHAR and VARCHAR
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/reldef.cpp
  modified:   storage/connect/value.cpp

- Add ACCEPT option for void columns in discovery
  modified:   storage/connect/tabjson.cpp

- Update some tests because of above change
  modified:   storage/connect/mysql-test/connect/r/json_java_2.result
  modified:   storage/connect/mysql-test/connect/r/json_java_3.result
  modified:   storage/connect/mysql-test/connect/r/json_mongo_c.result
  modified:   storage/connect/mysql-test/connect/r/mongo_c.result
  modified:   storage/connect/mysql-test/connect/r/mongo_java_2.result
  modified:   storage/connect/mysql-test/connect/r/mongo_java_3.result
  modified:   storage/connect/mysql-test/connect/r/odbc_oracle.result
  modified:   storage/connect/mysql-test/connect/r/updelx.result
  modified:   storage/connect/mysql-test/connect/t/mongo_test.inc