Real Invoices values for reporting and display of Paid and Owing

[Ap.Muthu]

Hi Justin,

I have ported the entire real invoices (pr.status = 1) from my repo tot he
si master.
Now when a customer is viewed, the customer invoices and owing will show the
User recognisable pref_inv_wording based invoice numbers in the links.
All reports now have been filtered for "real" invoices.
Some SQLs have been corrected to be Multi-version MySQL compliant.

https://github.com/simpleinvoices/simpleinvoices/commit/30c5250d5d5d82a7d3f750d27637066d0f51ecec

https://github.com/simpleinvoices/simpleinvoices/commit/2d9facca385fd3ac1bff3ae48543c2ecc4ffc3d9

Regards,
Ap.Muthu

[Justin Kelly]

thanks ap