endsStringWith(sString, sSuffix) {
			return sString.indexOf(sSuffix, sString.length - sSuffix.length) !== -1;
		}
Helper function to determine if a file ends with a specified suffix.

@param {string} sString - String that has to be checked
@param {string} sSuffix - Suffix
@returns {boolean} <code>true</code> if the passed suffix is the last part of the passed string
@public