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/docker/libcompose/project/project_build.go

@@ -0,0 +1,17 @@
+package project
+
+import (
+	"golang.org/x/net/context"
+
+	"github.com/docker/libcompose/project/events"
+	"github.com/docker/libcompose/project/options"
+)
+
+// Build builds the specified services (like docker build).
+func (p *Project) Build(ctx context.Context, buildOptions options.Build, services ...string) error {
+	return p.perform(events.ProjectBuildStart, events.ProjectBuildDone, services, wrapperAction(func(wrapper *serviceWrapper, wrappers map[string]*serviceWrapper) {
+		wrapper.Do(wrappers, events.ServiceBuildStart, events.ServiceBuild, func(service Service) error {
+			return service.Build(ctx, buildOptions)
+		})
+	}), nil)
+}