Import mysql-connector-c++-1.1.3 as databases/mysql-connector-c++.

MySQL Connector/C++ is a MySQL database connector for C++. It lets
you develop C++ applications that connect to the MySQL Server.

MySQL Connector/C++ offers the following benefits for C++ users
compared to the MySQL C API (MySQL client library):

* Convenience of pure C++; no C function calls required
* Supports JDBC 4.0, an industry standard API
* Supports the object-oriented programming paradigm
* Reduces development time
+ mysql-connector-c++
Added databases/mysql-connector-c++ version 1.1.3