localeData().months() or weekdays() throws exception or undefined in 14 locales

[timfish]

Previously reported in this issue but they're two separate issues.

localeData().monthsShort() appears to be broken for:

• es
• es-do
• nl
• nl-be
• fy

Both m and format are undefined when getting the locale data:

    monthsShort : function (m, format) {
        if (/-MMM-/.test(format)) {
            return monthsShort[m.month()];
        } else {
            return monthsShortDot[m.month()];
        }
    }

[timfish]

One or more localeData methods are also broken for:

• be
• el
• hr
• hy-am
• ka
• lt
• pl
• ru
• uk