Special Elections; Requiring, rather than authorizing, the Governor to call a special primary election and a special election under a certain circumstance; requiring the Governor to fix the dates of a special election within a specified timeframe after the vacancy occurs; authorizing qualified electors to file a petition in the circuit court seeking judicial determination of an election date under specified conditions; deleting the authority of the Governor, the President of the Senate, and the Speaker of the House of Representatives to waive specified timeframes if all parties concur, etc.