RC1 Release Version1

1. Fixed validation md-in-logo-front, md-in-logo-back.
2. Fixed  validation for logo data from laser-graving into
laser-engraving
3. Quotation send status message has been fixed. Now displays properly.
4.  Fixed empty file upload error. Now does not show error.
5. Fixed redirect function after validation
6. General product quotation now submits
7. Add Delete quotaton file when post type quotation is deleted
8. function for hook delete_user doesnt work, commented the function.