#16 Invoice Header setting option

[urugamai]

In Australia we need to send invoices with the words 'Tax Invoice' as the header when we are billing clients. The patch attached adds an entry field to PROJECTS that allows you to specify the words to go on the top of the invoice. as this is user entered I have not done any language translations (user can do that when entering the text).
Apply patch by being in the /var/www/tems directory (or where you put it) with:
patch -i /(path to patch file)/tems_update_invoiceheadertext.diff --merge --strip=5

[urugamai]

As usual, I forgot something... need to add column to projects table via:

alter table projects add column invoiceheadertext varchar(50) after billtoemail;