Merge pull request flannel-io#1265 from rajatchopra/releasev0.12

Spruce up for release 12.0

Merge pull request flannel-io#1089 from JohnJAS/master

Enhance the part of how to build flannel.exe

Merge branch 'v0.10.0-manifests'

kube: Update manifests to v0.9.1

Merge pull request flannel-io#826 from tomdee/k8s-manifests

kube-flannel.yaml: Update manifests to latest release

Merge pull request flannel-io#817 from tomdee/cleanup-libs

Makefile: Stop pulling the unused lib from kube-cross

Update manifest to v0.8.0

Merge pull request flannel-io#752 from mgleung/prev-lease

flannel reads from created subnet.env file on startup

Makefile: Don't "clean" iptables

Correct the image in the k8s manifest files