Repair Labels code to accomodate patroncards. Purged EXPR.

Repair Labels code to accomodate patroncards. Purged EXPR.

Major FIXME's still remain, like the use of GET instead of POST.
The code is also a bit too INCLUDE-happy to net good performance.
The entire mechanism of adding to a batch should probably be proper
AJAX instead of the GET-centric opener.location approach.

Signed-off-by: Joshua Ferraro <jmf@liblime.com>