Retirement; Authorizing an elected officer, except while serving as a legislator, to remain in elective office and receive accumulated Deferred Retirement Option Program (DROP) proceeds after the officer attains a certain age; requiring the Division of Retirement or the State Board of Administration, as appropriate, to take steps to recoup from the elected officer any DROP proceeds distributed in accordance with a specified provision, under specified circumstances; revising the cost-of-living adjustment for eligible Special Risk Class retirees; revising required allocations from the Contributions Clearing Trust Fund to provide disability coverage to members of the investment plan of the Florida Retirement System, etc.