bool bz_IDUnbanUser (const char* bzID)
Unbans a bzID address currently listed in the ban list. Note: The bzID is automatically assigned via the registration process at the BZBB. In the version 2.4.0 API, there is no corresponding bz_IDBanUser() function which means previous bans had to be made by administrators manually.
bzID - The exact bzID to remove from the ban list. Note that this is not an integer, but a string.
Whether or not the removal of the ban was executed successfully.