toString(.shortMonth) doesn't work properly

[Emir Huseinbasic]

In DateHelper.swift
func toString(style:DateStyleType = .short) -> String

has a issue.

    case .month:
        let monthSymbols = Date.cachedFormatter().monthSymbols!
        return monthSymbols[component(.**weekday**)!-1] as String **_// should be month_**
    case .shortMonth:
        let shortMonthSymbols = Date.cachedFormatter().shortMonthSymbols!
        return shortMonthSymbols[component(.**weekday**)!-1] as String **_// should be month_**
    case .veryShortMonth:
        let veryShortMonthSymbols = Date.cachedFormatter().veryShortMonthSymbols!
        return veryShortMonthSymbols[component(.**weekday**)!-1] as String **_// should be month_**

[Melvin Rivera]

Thanks for catching this bug. It's been fixed here: edb0c6e