Backport spine label editing and printing enhancements from trunk

Backport spine label editing and printing enhancements from trunk

  * Automatically add prefix and/or suffix to a spine label if set
    in the copy locations editor

  * Set default font size, family, and weight along with label height, width,
    and left margin for each library via library settings editor.

  * Navigate up and down using cursor keys and insert/delete lines with
    the insert/delete keys.

  * Provide some basic LC formatting for line wrapping.

  * Use different print strategies depending on whether we're using
    xulrunner 1.9.0 or 1.9.2.

git-svn-id: svn://svn.open-ils.org/ILS/branches/rel_2_0@17437 dcc99617-32d9-48b4-a31d-7c20da2025e4