code: function composeTrustMEJoint(from_address, round_index, signer, callbacks){
  	composeJoint({
  		paying_addresses: [from_address],
  		outputs: [{address: from_address, amount: 0}],
  		round_index: round_index,
  		pow_type: constants.POW_TYPE_TRUSTME,
  		signer: signer,
  		callbacks: callbacks
  	});
  }
docs: pow add trustme joint