Added support for CustomerCompanyListFields in the CIC search.

Squashed commit of the following:

commit 659a320b74b87699d7fb73e5da9b8b1364886033
Author: root <root@otrs-dev.(none)>
Date:   Tue Jul 16 02:23:58 2013 +0200

    The CustomerCompanyListFields setting from Config.pm is not used in the CustomerInformationCenter search box.

    This commit solves this issue.

    Cyrille

commit 7213ac86a0ee8a463255f1e47f0df3b9fd1b81ee
Merge: da01edd 4f2d0de
Author: root <root@otrs-dev.(none)>
Date:   Tue Jul 16 02:19:35 2013 +0200

    Merge branch 'master' of https://github.com/OTRS/otrs

commit da01eddd737222ea2e2d6f5ac2229938bb2d3ba5
Merge: ec758c4 193974b
Author: root <root@otrs-dev.(none)>
Date:   Mon Jul 15 04:35:11 2013 +0200

    Merge branch 'master' of https://github.com/OTRS/otrs

commit ec758c47964728688e0e544a0b3de69f3380599c
Merge: 68b92b6 643ee41
Author: root <root@otrs-dev.(none)>
Date:   Tue Jul 2 09:44:51 2013 +0200

    Merge branch 'master' of https://github.com/belnet-ict/otrs

commit 68b92b6692a6913e4a0a618e27e895eab50637f3
Merge: e47fdd9 73a0b2e
Author: root <root@otrs-dev.(none)>
Date:   Thu Apr 18 11:44:37 2013 +0200

    Merge remote-tracking branch 'upstream/master'