JAKARTA, Oct 21 (Reuters) - Indonesia&aposs finance ministry sold 1.49 trillion rupiah ($124 million) of Islamic bonds at an auction on Tuesday, slightly below an indicative target of 1.5 trillion rupiah, the ministry&aposs debt office said.The weighted average yield for the six-month Islamic T-bill was 6.73637 percent, lower than 6.81782 percent at the previous sale on Oct. 7.The six-year project