API changes list

• Implement when_all coroutine gate.

Changed

• Models: add toString method.

• changing std::strlen to a string comparison consistent with multibyte chars on model generation templates.

• Enhance error handling in CacheFile methods.

• Mysql exception forward errorNo to SqlError.

• Support unsigned integer types in MySQL ORM.

Fixed

• Fix errors after database connection interruption.

• Use redisFreeCommand instead of free() function.

• Fix the missing openssl dependency in FindMysql.

• Fix warnings - for range loop no copies, unsigned int always >= 0.

• Fix cross compiling.

• Fix linker errors on mingw64.

• Fix SQL syntax error when UPDATE has no fields to update.

• Fix unused variable warnings.