merge seials-integration [sic] branch into trunk

merge seials-integration [sic] branch into trunk

Dan Wells has provided tremendous efforts in developing a user interface
and middle-layer logic for controlling serials.  His work builds on the
serial schema hashed out earlier in the year, also with his heavy involvement,
and it provides ways to manage subscriptions, distribution, prediction,
receiving and more.  Although this code is but a beginning, much of it
is functional today.

This commit brings Dan's work into trunk.  Dan has provided some release
notes here: http://www.open-ils.org/dokuwiki/doku.php?id=acq:serials:release_notes:initial_trunk_merge

git-svn-id: svn://svn.open-ils.org/ILS/trunk@17215 dcc99617-32d9-48b4-a31d-7c20da2025e4