fixes per @mlorb 's request

app/controllers/users/invitations_controller.rb

@@ -192,7 +192,7 @@ module Users
       @role = params['role']
 
       render_403 if @emails && @emails.empty?
-      render_403 if @team && !can_read_team?(@team)
+      render_403 if @team && !can_manage_team_users?(@team)
       render_403 if @role && !UserTeam.roles.keys.include?(@role)
     end
   end

app/controllers/users/settings/teams_controller.rb

@@ -147,7 +147,7 @@ module Users
 
       def load_team
         @team = Team.find_by_id(params[:id])
-        render_403 unless can_read_team?(@team)
+        render_403 unless can_update_team?(@team)
       end
 
       def create_params

app/controllers/users/settings/user_teams_controller.rb

@@ -150,7 +150,7 @@ module Users
         # Don't allow the user to modify UserTeam-s if he's not admin,
         # unless he/she is modifying his/her UserTeam
         if current_user != @user_t.user &&
-           !can_read_team?(@user_t.team)
+           !can_manage_team_users?(@user_t.team)
           render_403
         end
       end