Web build: better way of building translations.

Web build: better way of building translations.

By "better", I mean "being beaten up by bikini-clad girls with
rubber pipes is **better** than being beaten up by bikini-clad
football players".  No offense to anybody who desires such things
(citing rule 34).

Yes, the for loop is ugly, especially since I don't know why the
various escape strings work.  And I'm positive that this is a
stupid way of writing a makefile; patches from anybody who knows
anything about makefiles are appreciated.