Added a missing space after the count for English language entries.
Added scripts to the list of ignored top-level directories.

The scripts directory contains a copy of the shell script that is
run as a cron task for downloading checklists from the online databases.
Improved display of sources.

Replaced the list of links to the sources for each checklist with a
hidden div that is displayed (toggable, initially hidden) by clicking
on a link. The format of the sources changed. Now a list of the
checklist location names is shown and for each location there is an
inline list of links for each checklist for which entries are shown.
The inline list is ordered by the name of the source so for example
all the links to eBird checklists appear together.

Currently only links for eBird checklists are shown as this is the
only source where individual checklists are linkable. The other main
source used, BirdLife's network of databases, requires a login before
any data can be seen and there it does not have individual pages for
 checklists - instead you can only see the checklist in a relatively
raw state (a table that will be displayed in a popup panel, with
no styling).