Merge pull request #618 from mariroz/dev

remove duplicates by import; code formatting changes: tabs replaced with spaces
can't close search popup with the cross picture #613
Merge pull request #621 from wallabag/fix-613

can't close search popup with the cross picture #613
[fix] Escap key displays save a link form #612
Merge pull request #622 from wallabag/fix-612

[fix] Escap key displays save a link form #612
[fix]  display problem with smartphone and Baggy #610
responsive for search form #610
Merge pull request #623 from wallabag/fix-610

Fix display problem with smartphone and Baggy #610
logging by import added; error by creation table if exists in postgresql fixed.