An Act amending the act of March 10, 1949 (P.L.30, No.14), known as the Public School Code of 1949, in charter schools, further providing for definitions, for charter school requirements, for powers of board of trustees and for facilities; and, in reimbursements by Commonwealth and between school districts, further providing for approved reimbursable annual rental for leases of buildings or portions of buildings for charter school use.