Merge branch 'sandbox'
dns server details to be entered by the user in controller config file
fix
fixed issues
fixes
fixes
FIXES :
  baseaddress was missing in some setup files
  made changes to run filer on any system (can now be run on sandbox system)
  mac address of bridges forced to be that of added nics on vms (for reference see how bridge macs get allotted on linux)
  host ram can be reduced (minimum ram for ubuntu vm is approximately 64 MB for GUI)
  dns function had error
  ovs-vsctl set bridge function added
Merge branch 'master' into sandbox
Fixes after merge