ftp_utils: download directory fix

* moving to the corresponding ftp directory before downloading
  the files gets rid of the need to manage two different file
  names.

Signed-off-by: Martin Vesper <martin.vesper@cern.ch>
Merge pull request #56 from mvesper/fix_download_directory

ftp_utils: download directory fix
springer_crawler: fix bad print statement
global: Bibrecord dependecy removed.

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>