added wp_localize_script() to admin_ajax.js

* german translation
* placeholder for all trabslation strngs in
localize_admin_reclaim_script()
make reclaim-posts deletable

still not perfect, but now one can move a post to trash or mark it as
draft or private — and it won't be resynced / resyndicated.
solves #71
display ajax_sync() only if implemented

* some option display tweaks
* better anchor link
better tag/category handling

* works more or less generic (tested with delicious, pinboard,
instapaper starred and to read feeds). also imports other RSS sources,
but that should still be done with an even more generic class (see #4)
* corrected a reported error, see
https://twitter.com/klischka/status/437127848294633472
Merge remote-tracking branch 'upstream/master'
update FR translation