Change network check to ping 8.8.4.4 rather than 8.8.8.8
Change network check to ping 8.8.4.4 rather than 8.8.8.8

8.8.8.8 was not responding today, so using Google's primary DNS server instead.

See #107, a better solution is probably needed.

usminteractive/VVV,rooftopcms/VVV,ryandury/VVV,saucal/VVV,tomjn/varying-vagrant-vagrants,jcgsville/iProcrastinated,jjeaton/VVV,tpkemme/TVV,cristovaov/VVV,cfoellmann/VVV,rogeruiz/VVV,ezekg/theme-juice-vvv,tomjn/varying-vagrant-vagrants,EHLOVader/VVV,rpkoller/VVV,hellquist/vvv,startsiden/lokalhero-wordpress-vagrant,ryandury/VVV,rooftopcms/VVV,miya0001/VVV,harvestweb/VVV,writecodedrinkcoffee/VVV,TobiasBg/Varying-Vagrant-Vagrants,speartail/VVV,designreuse/VVV,thatmitchcanter/VVV-Lite,AngeIII/VVV-Simplified,ezekg/VVV,tu-software-studio/VVV,ericandrewlewis/VVV,harvestweb/VVV,tttanaka/VVV,iparr/VVV,n2linux/VVV,ericandrewlewis/VVV,WybrenKoelmans/VVV,killa-kyle/vvv,tpkemme/TVV,bitclaw/VVV,trepmal/varying-vagrant-vagrants,commana/moodle-vagrant,grantnorwood/VVV,mikesprague/VVV,Varying-Vagrant-Vagrants/VVV,BlakeRxxk/VVV,taupecat/VVV,n2linux/VVV,tim-steele/VVV,taupecat/VVV,DrewAPicture/varying-vagrant-vagrants,patrickheeney/VVV,EHLOVader/VVV,mattbanks/VVV,morganestes/VVV,nexusthemes/VVV,hellquist/vvv,jjogle/VVV,namminammi/VVV,speartail/VVV,enriquezm/VVV,thatmitchcanter/VVV-Lite,zaantar/vov,cfoellmann/VVV,morganestes/VVV,erikjoling/VVV,salcode/VVV,peterblazejewicz/vvv-custom,ericmann/VVV,startsiden/lokalhero-wordpress-vagrant,patrickheeney/VVV,jjogle/VVV,startsiden/lokalhero-wordpress-vagrant,tttanaka/VVV,commana/moodle-vagrant,AngeIII/VVV-Simplified,AngeIII/VVV-Simplified,morganestes/VVV,DrewAPicture/varying-vagrant-vagrants,WybrenKoelmans/VVV,BlakeRxxk/VVV,grantnorwood/VVV,miya0001/VVV,TobiasBg/Varying-Vagrant-Vagrants,nexusthemes/VVV,usminteractive/VVV,erikjoling/VVV,designreuse/VVV,tu-software-studio/VVV,tpkemme/TVV,iparr/VVV,tu-software-studio/VVV,salcode/VVV,jjeaton/VVV,mattbanks/VVV,bitclaw/VVV,lkwdwrd/varying-vagrant-vagrants,killa-kyle/vvv,enriquezm/VVV,namminammi/VVV,Varying-Vagrant-Vagrants/VVV,peterblazejewicz/vvv-custom,tim-steele/VVV,tpkemme/TVV,mikesprague/VVV,Varying-Vagrant-Vagrants/VVV,jcgsville/iProcrastinated,thatmitchcanter/VVV-Lite,startsiden/lokalhero-wordpress-vagrant,saucal/VVV,rogeruiz/VVV,ezekg/VVV,cristovaov/VVV,digitalmediaproduction/JAMAVagrant,lkwdwrd/varying-vagrant-vagrants,evelynriossf/VVV-MultiMachine,ezekg/theme-juice-vvv,trepmal/varying-vagrant-vagrants,tu-software-studio/VVV,ericmann/VVV,writecodedrinkcoffee/VVV,westi/varying-vagrant-vagrants,taupecat/VVV,AngeIII/VVV-Simplified,taupecat/VVV,digitalmediaproduction/JAMAVagrant,Haimanot1989/vvv-at-senitel,westi/varying-vagrant-vagrants,zaantar/vov,clreed87/VVV,rpkoller/VVV,Haimanot1989/vvv-at-senitel,primozcankar/VVV,saucal/VVV,mattbanks/VVV,AngeIII/VVV-Simplified,primozcankar/VVV,evelynriossf/VVV-MultiMachine,clreed87/VVV