v2.9.2 -> Oct 26, 2018

-New Add low stock amount option in vendor product
-Fix Issue fix for REST API PUT and DELETE request
-Fix Promotion hiding error in console
-Fix Rest controller undefined data_objects error
-Fix Currency symbol issue in dokan admin backend
-Tweak Change withdraw api hooks in REST API
-Tweak Added some filter in dokan vendor class
-Tweak Enable option group for select fields in admin settings page
-Tweak Change some template rendering hooks