create app/validators folder. move activemodel validation files here.
autoload app/validators folder
require 'ip' not needed..using ruby default IPAddr class
update iprange spec. completed validation of range..
create rake task 'db:test:reset', resets dev and test db
changes to host model. add field pod_id and ipaddr.
make host belong to pod
add pod has many hosts asssociation
validate presence of :ipaddr in host model
include strip attributes gem. this removes whitespaces begin and end of a string
working on getting host discovery done..