cubicweb: Changelog

Arthur Lutz <arthur.lutz@logilab.fr> [Wed, 27 Jul 2011 12:25:48 +0200] rev 7703

[css] syntax fix in cubicweb.css

Adrien Di Mascio <Adrien.DiMascio@logilab.fr> [Tue, 26 Jul 2011 19:34:43 +0200] rev 7702

[entities] skip_copy_for should be considered for object relations too (closes #1857474)

Sylvain Thénault <sylvain.thenault@logilab.fr> [Tue, 26 Jul 2011 16:50:06 +0200] rev 7701

[datafeed] case insensitive etype. Closes #1877014

Sylvain Thénault <sylvain.thenault@logilab.fr> [Tue, 26 Jul 2011 16:50:02 +0200] rev 7700

[datafeed] closes #1875322: empty tag means None value

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