bug 2394: regression test for canreservefromotherbranches

bug 2394: regression test for canreservefromotherbranches

If IndependentBranches is ON and canreservefromotherbranches is OFF,
a patron is not permittedo to request an item whose homebranch (i.e.,
owner of the item) is different from the patron's own library.
However, if canreservefromotherbranches is turned ON, the patron can
create such hold requests.

Note that canreservefromotherbranches has no effect if
IndependentBranches is OFF.

To test, run prove -v t/db_dependent/Holds.t.  Without the bugfix
patch for bug 2394, the last two tests should fail.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>