Get bongo on to the letest gcc 4.7

[Mario Fetka]

Hallo,

i am at the mometn working on getting bongo onto armv5 to work so that it
can be installed onto nas devices to have a small mail server. because
postfix qpopper .... dovecot .... are just to much.

and come across many compile rrors

so build fixes would be great.

thx
Mario