font hardcoded

[Kent Tong]

Hi,

I notice that Chinese can't be displayed at various places in gnucash. After
investigation, I found that it is because the use of a helvetica font is
hardcoded in gnc-dense-cal.c and gnucash-style.c and they call gdk_font_load()
to load the font.

This is apparently not a way suitable for i18n. However, I have absolutely
no experience with GTK (and pango), I don't know how to fix this problem.
Would you please give me your suggestion, ie, what is the right way to
do it?

Thanks!