Expose more features for analysis

[janmechtel]

Would be cool if the aggregate table services would already contain interesting dimensions:

• Title (Title_First, Title_Last, Title_MostFrequent)
• Language (First, Last, MostFrequent)
• FirstSeen_Date > Year, Year_Month, Month
• LastSeen_Date > Year, Year_Month, Month
• Age = Last-First in days
• Alive? Dead if LastSeen > TODAY()-7
• Longest Uptime
• Longest Downtime
• Total Uptime
• Total Downtime (before "death")
• Average downtime duration
• Number of downtimes

Ideas for questions:

• Are titles/languages changing? How Many Titles/languages does a service have on average
• How long are downtimes in general? What is the probability that a service is coming back after 1,2,3,4 days ...