The Council shall have the power to fix its own compensation and that of each employee of the City, including officers and members of any board or commission of the City, whether elected, appointed or chosen, and to establish bond for the faithful discharge of the duties of the office. The premium of any bond required by the Council shall be paid by the City. The compensation of all elected officials shall be fixed at least thirty (30) days prior to the filing date of nominating petitions for the terms beginning on the next succeeding first day of January, and shall not thereafter be changed in any respect during any such term or any part thereof. The Council may authorize any officer of the City to make such travel as the Council deems to be in the public interest, and may provide that the expense of such travel be paid by the City.