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/user.go

@@ -102,11 +102,12 @@ type User struct {
 	MaxRepoCreation int `xorm:"NOT NULL DEFAULT -1"`
 
 	// Permissions
-	IsActive         bool // Activate primary email
-	IsAdmin          bool
-	AllowGitHook     bool
-	AllowImportLocal bool // Allow migrate repository by local path
-	ProhibitLogin    bool
+	IsActive                bool // Activate primary email
+	IsAdmin                 bool
+	AllowGitHook            bool
+	AllowImportLocal        bool // Allow migrate repository by local path
+	AllowCreateOrganization bool `xorm:"DEFAULT true"`
+	ProhibitLogin           bool
 
 	// Avatar
 	Avatar          string `xorm:"VARCHAR(2048) NOT NULL"`
@@ -210,6 +211,11 @@ func (u *User) CanCreateRepo() bool {
 	return u.NumRepos < u.MaxRepoCreation
 }
 
+// CanCreateOrganization returns true if user can create organisation.
+func (u *User) CanCreateOrganization() bool {
+	return u.IsAdmin || u.AllowCreateOrganization
+}
+
 // CanEditGitHook returns true if user can edit Git hooks.
 func (u *User) CanEditGitHook() bool {
 	return u.IsAdmin || u.AllowGitHook
@@ -611,6 +617,7 @@ func CreateUser(u *User) (err error) {
 		return err
 	}
 	u.EncodePasswd()
+	u.AllowCreateOrganization = true
 	u.MaxRepoCreation = -1
 
 	sess := x.NewSession()