wordpress

- Fix all blogs that have an empty recaptcha key.
- require configuration for wp-recaptcha (to define the global keys)

rationale: since we've disabled the flattr js loading (and it was broken
anyway) the flattr counter is no longer there.

this also affects people who previously selected the default 'js' option, so
instead of diplaying nothing display the static flattr badge.

the important bit is that we don't touch users options this way: if we
want to add the counter/js back it is sufficient to revert our changes to the
plugin.

and Scriptaculous

Wordpress APIs use the Wordpress version in the user-agent to determine which
plugins are available for an update. Using a fake version breaks this
mechanism.
Signed-off-by: shammash <shammash@autistici.org>