Feature - Extend Monitor time period

[Bbertatum]

It would be great if in monitor section :

• We be able to move the availability graph to week / month / year period
• calculate the availability according to the selected time period
• display events according the selected time period.

Thanks

[moonrailgun]

point 2 is cool.

and now tianji not support too long record yet because not using a real time series database

we will improve it in future. keep notice! thanks.