update version in configure and spec

document IOS-XR prefix-list limitation

make GCC happy

update CHANGES/configure to 0.1.35-rc

update spec

tag 0.1.32, correct autoconf

linux compatibility.

BIRD: do not generate empty lists at all: BIRD is not able to handle …

…them.

feature: user-formatted output, -F <fmt>.

bugfix: no sources in command-line could lead to no source limit sent…

… to IRRd.