csv import broken (with simple fix)

[ruby0x1]

I was using a small portion of the TileLayer import code, testing against a csv export from Tiled and I ran into some issues -

• the string input comes from the tmx with all kinds of extra newlines/spaces
• the row items are parsed by ,, but because of the new line split there is an additional one, leading to a "" at the end of the row array, and this, it get's pushed into the array as well making the resulting tilemap offset and "broken"

I would make a pull request if need be, but it's simple really so!

Before : (wrong)

After : (expected)

You can see the printed output here, showing the blanks :

//before
private static function csvToArray(input:String):Array<Int> {   
    var result:Array<Int> = new Array<Int>();
    var rows:Array<String> = input.split("\n");
    var row:String;
    for (row in rows){
        if (row == "") continue;
        var resultRow:Array<Int> = new Array<Int>();
        var entries:Array<String> = row.split(",");
        var entry:String;
        for (entry in entries)
        result.push(Std.parseInt(entry));                       
    }
    return result;
}

//after
private static function csvToArray(input:String):Array<Int> {   
    var result:Array<Int> = new Array<Int>();
    var rows:Array<String> = StringTools.trim(input).split("\n");
    var row:String;
    for (row in rows){
        if (row == "") continue;
        var resultRow:Array<Int> = new Array<Int>();
        var entries:Array<String> = row.split(",");
        var entry:String;
        for (entry in entries) {
            if(entry != "") {
                result.push(Std.parseInt(entry));
            }
        }
    }
    return result;
}