previously, it wasn't possible to insert anything into the <head> on
an individual template unless it was the title of the page. Now, the
structure is a bit more flexible to allow additional head elements to
be included.
- Printer selection for add a new branch, is now working
- the branchname of librarian is not display automaticly if you add a new branch
- the printqueue is now displayed on branches infos page and edit branch page
adding two fields in branches table (branchip,branchprinter)
branchip : if the library enter an ip or ip range any librarian that connect from computer in this ip range will be temporarly affected to the corresponding branch .
branchprinter : the library can select a default printer for a branch
