v0.14.0

Changes

Support multiple values for -edit-route and -clone-route (#2110)
Bumping VERSION in this commit due to changing type of skipper.Options
fields {Edit,Clone}Route from pointer to slice of pointers. This
change does not affect binary users, library users should just wrap
the single pointer they provide into skipper.Options struct into
slice which contains this single pointer.
Fixes #2106

Docker image

Docker image is available in Zalando's Open Source registry:

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.14.0 skipper --help
# arm64
docker run -it registry.opensource.zalan.do/teapot/skipper-arm64:v0.14.0 skipper --help
# arm v7 32bit
docker run -it registry.opensource.zalan.do/teapot/skipper-armv7:v0.14.0 skipper --help