Fixing US date format.

Squashed commit of the following:

commit 75dba096b0d653be27b6d51a72bb7ab67b8518af
Merge: 594e74e e27ba44
Author: Ramón Cahenzli <rca@psy-q.ch>
Date:   Wed Oct 15 10:18:51 2014 +0200

    Merge branch 'master' into rca_fix_us_date_format

commit 594e74e8a3547f256af127c8ce16ef2be7f206e4
Author: Ramón Cahenzli <rca@psy-q.ch>
Date:   Wed Oct 15 10:18:13 2014 +0200

    Add English (US) everywhere.

commit b50416b1940de104da53213921eedb86d258d609
Author: Ramón Cahenzli <rca@psy-q.ch>
Date:   Thu Oct 2 14:23:10 2014 +0200

    Remove broken string

commit cabe9a179758d567d0fcbcf4ced09f517dc9ac9c
Author: Ramón Cahenzli <rca@psy-q.ch>
Date:   Thu Oct 2 14:19:46 2014 +0200

    Add en-US, remove es