added an automatic scaler for our workers, it is basically a polling loop that...

added an automatic scaler for our workers, it is basically a polling loop that will check every now and then how many jobs are there in the redis queue, if #>maxthreshold then scale up if #<minthreshold then scale down. min and maxthreshold are diffrent values to not be stuck in a pivot value leading to instant and reoccurent scaling up and down ops