package libipq as a shared library

r21799 by jow  changed the staging install of libipq so that it is no
longer available as a static library but is dynamically linked in as a
shared library. However the libipq package was not being built. This
patch provides libipq.so as a package.

Signed-off-by: Ashok Rao <greatarbor@gmail.com>

SVN-Revision: 22436