DB/BL: Adjusted position of delete button in library
DB/BL: Adjusted positioning on source submiy and add topic
db/bl: fixed bug around #submit_new_topic and #save_source_button
bl/db: fixed #bookmarklet
db/bl/#024: refactored validations
Merge pull request #82 from gopher-snakes-2013/024-refactor-validations

024 refactor validations