Upgrade psutil to 4.3.0

[fabaff]

#4.3.0 - 2016-06-18

Enhancements

• [Linux] different speedup improvements:
  Process.ppid() is 20% faster
  Process.status() is 28% faster
  Process.name() is 25% faster
  Process.num_threads is 20% faster on Python 3

Bug fixes

• [Windows] Windows wheels are incompatible with pip 7.1.2.
• [NetBSD] fix compilation on NetBSD-5.x.
• [NetBSD] virtual_memory() raises TypeError on Python 3.
• [UNIX] psutil.disk_usage() percent field takes root reserved space into account.
• [Windows] fixed net_io_counter() values wrapping after 4.3GB in Windows Vista (NT 6.0) and above using 64bit values from newer win APIs.

Tested with the following configuration:

sensor:
  - platform: systemmonitor
    resources:
      - type: 'disk_use_percent'
        arg: '/'
      - type: 'disk_use'
        arg: '/home'
      - type: 'disk_free'
        arg: '/'
      - type: 'memory_use_percent'
      - type: 'memory_use'
      - type: 'memory_free'
      - type: 'swap_use_percent'
      - type: 'swap_use'
      - type: 'swap_free'
      - type: 'network_in'
        arg: 'wlp1s0'
      - type: 'network_out'
        arg: 'wlp1s0'
      - type: 'packets_in'
        arg: 'wlp1s0'
      - type: 'packets_out'
        arg: 'wlp1s0'
      - type: 'ipv4_address'
        arg: 'wlp1s0'
      - type: 'ipv6_address'
        arg: 'wlp1s0'
      - type: 'processor_use'
      - type: 'last_boot'
      - type: 'since_last_boot'

[balloob]

Looks good! 🐬