Make time/date options available in processing rules

[#1]

I was wondering why there are no timestamp functions in the processing rules. It should be really simple to add different type of timestamp options like full timestamp or just access to hour, day, month, year, week,day of week,...

[#2]

It would be great to have timestamp data/options in the list of "hit attributes"

[#3]

I really like this idea, @Hjalmar . In fact, I needed this today for a personal implementation I am working on. Tagging @BretGundersen so he can see it and respond. 

[#4]

Excellent idea. I've added it to the backlog of ideas we'll consider when we revisit processing rules.