Deploy database to Azure SQL fails, sp_MSforeachtable not found

This feature is not implemented in SQL Database in Azure.

You can find a copy of it at this location: https://gist.github.com/metaskills/893599

sp_MSforeachtable is an undocumented stored procedure in the Master database. This apparently hasn't been ported over to Azure SQL. I believe you'll need to add it manually to the Master database. Once that is done, your DACPAC should work just fine on your own Azure SQL database. I don't see a problem with manually adding sp_MSforeachtable. DACPACs are meant to keep your database in sync, not the Master database.