get and all returned AWS error responses about empty values being specified. Existing shin do
tests already covered these cases as this:
FOG_MOCK=false bundle exec shindont tests/aws/models/dns/records_tests.rb
was reporting 6 failures.
Tests pass after fix.
#get was not working correctly. It was not using the :identity
attribute of the record as its argument, was calling #get_change which
does not return a record.
#get now takes a record name as its first argument and returns the
first matching argument or nil. It also take two optional arguments,
type and identifier, which allow one to select a specific record as
needed, without iterating through multiple records.
