Changed copyright to 2014

Happy new year !
Fix to #600
postgres sequence error fix, issue #602
Merge pull request #603 from mariroz/dev

postgres sequence error fix, issue #602
[fix] Use of undefined constant ATOM #604
Merge pull request #605 from wallabag/fix-604

[fix] Use of undefined constant ATOM #604
in RSS feed, add link to wallabag URL #556
Merge pull request #606 from wallabag/fix-556

in RSS feed, add link to wallabag URL #556
remove unnecessary variable declaration
Merge pull request #609 from wallabag/fix-desciption-typo

remove unnecessary variable declaration
update french locale, thx to @goofy-bz and @Draky50110 #596
Merge pull request #611 from wallabag/fix-french-locale

update french locale, thx to @goofy-bz and @Draky50110 #596
[fix] with some config, http host is different
Merge pull request #614 from wallabag/fix-host-getpocheurl

[fix] with some config, http host is different
remove duplicates by import, code changes: tabs replaced with spaces
code formatting changes: tabs replaced with spaces, some other small formatting enhancements
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