Quarter RRule

Usage

import quarter.rrule.QuarterRRule
import org.joda.time.LocalDate

class Sample(@Autowired private val quarterRRule: QuarterRRule) {
    fun sample() {
        val timestamp = this.quarterRRule.findTimeStampBy(LocalDate(2017, 1, 2))
        println(timestamp)   // 2017/01/01
    }
}