Restrict creating organisations by user (#193)

* restrict creating organizations based on right on user

* revert bindata.go

* reverse vendor lib

* revert goimports change

* set AllowCreateOrganization default value to true

* revert locale

* added default value for AllowCreateOrganization

* fix typo in migration-comment

* fix comment

* add coments in migration

models/migrations/v15.go

@@ -0,0 +1,30 @@
+// Copyright 2016 Gitea. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import (
+	"fmt"
+
+	"github.com/go-xorm/xorm"
+)
+
+// UserV15 describes the added field for User
+type UserV15 struct {
+	AllowCreateOrganization bool
+}
+
+// TableName will be invoked by XORM to customrize the table name
+func (*UserV15) TableName() string {
+	return "user"
+}
+
+func createAllowCreateOrganizationColumn(x *xorm.Engine) error {
+	if err := x.Sync2(new(UserV15)); err != nil {
+		return fmt.Errorf("Sync2: %v", err)
+	} else if _, err = x.Where("type=0").Cols("allow_create_organization").Update(&UserV15{AllowCreateOrganization: true}); err != nil {
+		return fmt.Errorf("set allow_create_organization: %v", err)
+	}
+	return nil
+}