Merge pull request #155 from ranacseruet/master

Ganglia GPU Monitoring Enhancements
Update iface.py to fix the error of Interface name

Sometimes, 'bytes' after 'Interface' are too long, and there is no space between 'Interface' and  'bytes'.
For example, in my /proc/net/dev there is one line begin with 'eth0:137719774170', and the iface will be identified as 'eth0:137719774170'.
Merge pull request #157 from Earne/master

Update iface.py to fix the error of Interface name
Merge remote-tracking branch 'upstream/master'

merge with origin.