9 * Realtime interface changes:

    10     - Replaced ec_slave_t with ec_slave_config_t, separating the slave objects

    11       from the requested bus configuration. Therefore, renamed

    12       ecrt_master_get_slave() to ecrt_master_slave_config().

    13     - Replaced slave address string with alias and position values. See

    14       ecrt_master_slave_config().

    15     - Removed ecrt_master_get_slave_by_pos(), because it is no longer

    16       necessary (alias/position, slave configurations).

    17     - Added ec_slave_config_state_t for the new method

    18       ecrt_slave_config_state().

    19     - Process data memory for a domain can now be allocated externally. This

    20       offers the possibility to use a shared-memory-region. Therefore,

    21       added the domain methods ecrt_domain_size() and ecrt_domain_memory().

    22     - Replaced the process data pointers in the Pdo entry registration

    23       functions with a process data offset, that is now returned by

    24       ecrt_domain_reg_pdo_entry(). This was necessary for the external

    25       domain memory. An additional advantage is, that the returned offset value

    26       is directly usable.

    27     - Replaced ecrt_slave_pdo_mapping/add/clear() with

    28       ecrt_slave_config_mapping() that is now able to specify Pdo mapping and

    29       Pdo configuration. Pdo entries mapped in this way can now immediately be

    30       registered. The Pdo mapping and the configuration are described with the

    31       new data types ec_pdo_info_t and ec_pdo_entry_info_t.

    32     - Renamed ec_bus_status_t, ec_master_status_t to ec_bus_state_t and

    33       ec_master_state_t, respectively. Renamed ecrt_master_get_status() to

    34       ecrt_master_state(), for consistency reasons.

    35     - Added ec_domain_state_t and ec_wc_state_t for a new output parameter

    36       of ecrt_domain_state().

    37     - Former "Pdo registration" meant Pdo entry registration in fact, therefore

    38       renamed ec_pdo_reg_t to ec_pdo_entry_reg_t and ecrt_domain_register_pdo()

    39       to ecrt_domain_reg_pdo_entry().

    40     - Removed ecrt_domain_register_pdo_range(), because it's functionality can

    41       be reached by specifying an explicit Pdo mapping and registering those

    42       Pdo entries.