Description
Sends your contacts list to the Bone server.

Callback
None (returns immediately)

Notes
The function parameter is the BONEHANDLE of the instance you want to update the contacts of.

Example

if (bone_addcontact(bhnd, "ima"))
    printf("Unable to add contact (reason %d).\n", bone_getlasterror());

if (bone_updatecontacts(bhnd))
    printf("Unable to send contacts (reason %d).\n", bone_getlasterror());