[bat] Allow to set dns_nameserver and security_group

Change-Id: Ia59be85a0e6ba6204bb1ed20953ccf9d9dfb4d6f
New micro version 0.8.1

Change-Id: I6b62b0e707927caf561b1cc1f1cd43e2955d1c07
Merge "[bat] Allow to set dns_nameserver and security_group"
Bosh agent 0.7.0

Change-Id: Ibea3c46c1baac5626989aa9693b50f03f3f8ac37