Merge pull request #61 from jordant/master

Add missing ; to bird rdnss config
Merge pull request #62 from jordant/master

sendmail=NO -> sendmail_flags=NO
disable usb and mpbios to reduce cpu overhead
Merge pull request #63 from fzylogic/master

disable usb and mpbios to reduce cpu overhead
Merge remote-tracking branch 'upstream/master'