Update a few dependencies

github.com/go-openapi/*
github.com/asaskevich/govalidator

vendor/github.com/asaskevich/govalidator/error.go

@@ -1,5 +1,7 @@
 package govalidator
 
+import "strings"
+
 // Errors is an array of multiple errors and conforms to the error interface.
 type Errors []error
 
@@ -9,11 +11,11 @@ func (es Errors) Errors() []error {
 }
 
 func (es Errors) Error() string {
-	var err string
+	var errs []string
 	for _, e := range es {
-		err += e.Error() + ";"
+		errs = append(errs, e.Error())
 	}
-	return err
+	return strings.Join(errs, ";")
 }
 
 // Error encapsulates a name, an error and whether there's a custom error message or not.
@@ -21,11 +23,21 @@ type Error struct {
 	Name                     string
 	Err                      error
 	CustomErrorMessageExists bool
+
+	// Validator indicates the name of the validator that failed
+	Validator string
+	Path      []string
 }
 
 func (e Error) Error() string {
 	if e.CustomErrorMessageExists {
 		return e.Err.Error()
 	}
-	return e.Name + ": " + e.Err.Error()
+
+	errName := e.Name
+	if len(e.Path) > 0 {
+		errName = strings.Join(append(e.Path, e.Name), ".")
+	}
+
+	return errName + ": " + e.Err.Error()
 }