Release v11.1.16

• fix(link): help link in selling
• fix: remove gitter chat
• feat: enabled allow on submit for action fields in the Budget
• Fix: Mapping issue in sql query
• Update payment_request.py
• fix: purchase receipt not able to submit because default inventory account has not selected in another company
• fix: pass correct argument to method get_deprication_amount
• fix(projects): change fieldtype of billing amounts to Currency
• fix: Rounding adjustment in Rounded Total
• fix(payments): Only check for Draft or Submitted paymentswhile cancelling payment requests