[IMP] Add additional event handlers
[FIX] Remove hard coded send email changes
[ADD] new module auto dispatch email
[FIX] method done not found in stock.picking
[IMP] Doc string added. Send emails for delivery orders only.
[FIX] Do not force send emails. Use existing event for triggering sending emails.
[FIX] Fixes to send emails on picking done, to match the job correctly and to de-duplicate the event

Conflicts:

	email_tracking_reference/stock_picking.py