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/info.go

@@ -0,0 +1,48 @@
+package project
+
+import (
+	"bytes"
+	"io"
+	"text/tabwriter"
+)
+
+// InfoSet holds a list of Info.
+type InfoSet []Info
+
+// Info holds a list of InfoPart.
+type Info map[string]string
+
+func (infos InfoSet) String(columns []string, titleFlag bool) string {
+	//no error checking, none of this should fail
+	buffer := bytes.NewBuffer(make([]byte, 0, 1024))
+	tabwriter := tabwriter.NewWriter(buffer, 4, 4, 2, ' ', 0)
+
+	first := true
+	for _, info := range infos {
+		if first && titleFlag {
+			writeLine(tabwriter, columns, true, info)
+		}
+		first = false
+		writeLine(tabwriter, columns, false, info)
+	}
+
+	tabwriter.Flush()
+	return buffer.String()
+}
+
+func writeLine(writer io.Writer, columns []string, key bool, info Info) {
+	first := true
+	for _, column := range columns {
+		if !first {
+			writer.Write([]byte{'\t'})
+		}
+		first = false
+		if key {
+			writer.Write([]byte(column))
+		} else {
+			writer.Write([]byte(info[column]))
+		}
+	}
+
+	writer.Write([]byte{'\n'})
+}