Update traefik dependencies (docker/docker and related) (#1823)

Update traefik dependencies (docker/docker and related)

- Update dependencies
- Fix compilation problems
- Remove vdemeester/docker-events (in docker api now)
- Remove `integration/vendor`
- Use `testImport`
- update some deps.
- regenerate the lock from scratch (after a `glide cc`)

vendor/github.com/libkermit/compose/check/compose.go

@@ -0,0 +1,61 @@
+// Package check aims to provide simple "helper" methods to ease the use of
+// compose (through libcompose) in (integration) tests using the go-check package.
+package check
+
+import (
+	"github.com/go-check/check"
+
+	"github.com/docker/docker/api/types"
+	"github.com/libkermit/compose"
+)
+
+// Project holds compose related project attributes
+type Project struct {
+	project *compose.Project
+}
+
+// CreateProject creates a compose project with the given name based on the
+// specified compose files
+func CreateProject(c *check.C, name string, composeFiles ...string) *Project {
+	project, err := compose.CreateProject(name, composeFiles...)
+	c.Assert(err, check.IsNil,
+		check.Commentf("error while creating compose project %s from %v", name, composeFiles))
+	return &Project{
+		project: project,
+	}
+}
+
+// Start creates and starts the compose project.
+func (p *Project) Start(c *check.C) {
+	c.Assert(p.project.Start(), check.IsNil,
+		check.Commentf("error while starting compose project"))
+}
+
+// Stop shuts down and clean the project
+func (p *Project) Stop(c *check.C) {
+	c.Assert(p.project.Stop(), check.IsNil,
+		check.Commentf("error while stopping compose project"))
+}
+
+// Scale scale a service up
+func (p *Project) Scale(c *check.C, service string, count int) {
+	c.Assert(p.project.Scale(service, count), check.IsNil,
+		check.Commentf("error while scaling the service '%s'", service))
+}
+
+// Containers lists containers for a given services.
+func (p *Project) Containers(c *check.C, service string) []types.ContainerJSON {
+	containers, err := p.project.Containers(service)
+	c.Assert(err, check.IsNil,
+		check.Commentf("error while getting the containers for service '%s'", service))
+	return containers
+}
+
+// Container return the one and only container for a given services.
+// It fails if there is more than one container for the service.
+func (p *Project) Container(c *check.C, service string) types.ContainerJSON {
+	container, err := p.project.Container(service)
+	c.Assert(err, check.IsNil,
+		check.Commentf("error while getting the container for service '%s'", service))
+	return container
+}