last update time features

[x] server should send last update time for each set of data times. so, this should come with each value analysis
[x] would like to display the last update time in the stat info box along with total time, avg time, ect.
[x] would like to be able to sort the bar chart by last update time
[x] file list should be sortable by last update time

risonakamo / time-stats