Localisation updates from http://translatewiki.net.

git-svn-id: http://blockly.googlecode.com/svn/trunk@1299 c400ca83-b69d-9dd7-9705-49c6b8615e23
Use workspace metrics to bump blocks back into visible workspace if there are no scrollbars.  Also, change 'black' to '#000' in CSS.

Review URL: https://codereview.appspot.com/13398043

git-svn-id: http://blockly.googlecode.com/svn/trunk@1301 c400ca83-b69d-9dd7-9705-49c6b8615e23