[enh] Add network stats charts (endpoints per API)
[enh] Add currency stats charts (memberships and pending memberships)

[fix] Tablet: fix popup layout, when keyboard open in landscape mode - fix #829
[fix] Tablet: add missing padding (list result, etc.)
[fix] Popover: fix freeze after open a popover
[fix] Transfer modal: open then close modal can freeze the app
[fix] Grapĥ: use independant legend option (e.g. scale on a graph are no more linked)
[fix] Fix theme color, in meta tags and manifest.json
[enh] Auto enable fullscreen on small screen, and add a button to toggle

[fix] Replace new Date().getTime() by Date.now() - Also use moment().utc().unix() for all unix time

[fix] Graph: keep hidden datasets and scale in the browser URL
[enh] add SSL icon on peer info, in top bar
[enh] Peer info:  show current block and SSL
[enh] Format block number using integer formatter