refactor history graphs, added clients, uptime graphs
fixed clients caption
moved detail page title computation,
added ember computed
changed graphs background grid color
updated momentjs because `moment('2014-03-30 02:00:00', 'YYYY-MM-DD HH:mm:ss').isValid()` was false
added graph period tabs, .handlebars -> .hbs
fixed tab amount, added 3_days computing for non bandwidth documents
added average values
added percent test, fixed percent test
changed version
added usage of dygraph dateWindow
[max(x_start), max(x_end)] (https://trac.torproject.org/projects/tor/ticket/11389#comment:1)
added graph stats color indicators
merged trim graphs
merged new graphs (#trac-11349)