Globe v0.4.6

• fixed #trac-11349 Add new graphs on average users per bridge and fractional uptime per relay/bridge to Globe
• fixed #trac-11283 When displaying a bridge's hashed IP, point to an explanation?
• fixed #trac-11280 Say KBytes, not K or k in the Globe interface
• fixed #trac-11389 Graphs should start/end at the same position