Fix GetTimelineStats / GetHourlyTimelineStats incorrect order

[Dresel]

Hi,

GetTimelineStats and GetHourlyTimelineStats job counts may be assigned to the wrong dates. The problem is that in the last loop where the result is generated the matching of the value of valuesMap[valuesMap.Keys.ElementAt(i)] and the date dates[i] are not correct.

for (var i = 0; i < dates.Count; i++)
{
    var value = valuesMap[valuesMap.Keys.ElementAt(i)]; // valuesMap.Keys may be unsorted if keys were missing and added via valuesMap.Add(key, 0);
    result.Add(dates[i], value); // dates are sorted
}

I also refactored some duplicated code into a separate function.

[odinserj]

Love you! :-D Planned to 1.3.4 coming soon.

[odinserj]

And thank you for switch from dev to master, this will help to release it sooner.

[Dresel]

I have to thank (love) you for this project - keep on :)