Add support for /proc/net/route

[pymongo]

output example:

[w@ww ~]$ cat /proc/net/route 
Iface   Destination     Gateway         Flags   RefCnt  Use     Metric  Mask            MTU     Window  IRTT                                          
wlp4s0  00000000        0112A8C0        0003    0       0       600     00000000        0       0       0                                             

RouteEntry { iface: "wlp4s0", destination: 0.0.0.0, gateway: 192.168.18.1, flags: 3, refcnt: 0, use: 0, metrics: 600, mask: 0.0.0.0, mtu: 0, window: 0, irtt: 0 }

[eminence]

Looks good, except for 1 minor thing. Thanks!

[eminence]

Thanks!