Fix networkpolicies if there are unscheduled pod, log errors (#378)

[xanonid]

Fixes #378

[murali-reddy]

@xanonid thanks for your patch. Please apply same fix in the function buildNetworkPoliciesInfo() this is what is relevent. buildBetaNetworkPoliciesInfo is function for supporting old clusters with beta network policy semantics. Perhaps i should remove the support for it.

	if npc.v1NetworkPolicy {
		npc.networkPoliciesInfo, err = buildNetworkPoliciesInfo()
		if err != nil {
			return errors.New("Aborting sync. Failed to build network policies: " + err.Error())
		}
	} else {
		// TODO remove the Beta support
		npc.networkPoliciesInfo, err = buildBetaNetworkPoliciesInfo()
		if err != nil {
			return errors.New("Aborting sync. Failed to build network policies: " + err.Error())
		}
	}

[xanonid]

@murali-reddy thanks for the review. I fixed now buildNetworkPoliciesInfo and updated the patch.