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/vdemeester/shakers/bool.go

@@ -0,0 +1,46 @@
+package shakers
+
+import (
+	"github.com/go-check/check"
+)
+
+// True checker verifies the obtained value is true
+//
+//    c.Assert(myBool, True)
+//
+var True check.Checker = &boolChecker{
+	&check.CheckerInfo{
+		Name:   "True",
+		Params: []string{"obtained"},
+	},
+	true,
+}
+
+// False checker verifies the obtained value is false
+//
+//    c.Assert(myBool, False)
+//
+var False check.Checker = &boolChecker{
+	&check.CheckerInfo{
+		Name:   "False",
+		Params: []string{"obtained"},
+	},
+	false,
+}
+
+type boolChecker struct {
+	*check.CheckerInfo
+	expected bool
+}
+
+func (checker *boolChecker) Check(params []interface{}, names []string) (bool, string) {
+	return is(checker.expected, params[0])
+}
+
+func is(expected bool, obtained interface{}) (bool, string) {
+	obtainedBool, ok := obtained.(bool)
+	if !ok {
+		return false, "obtained value must be a bool."
+	}
+	return obtainedBool == expected, ""
+}