Fixed: Dynamic fields in dashboard overview are empty (bug#10606).
Squashed commit of the following:

commit 5ebbcb6d36d2c707e4014acc12ffc6ed9bbf6383
Author: s7design <otrs@s7designcreative.com>
Date:   Tue Aug 5 15:22:43 2014 +0200

    Added note for config items DefaultColumns in dashboard overviews.

commit f23689d83b325b11225c5f09906ba8326ff6fbdf
Merge: bf74abd 72ee17c
Author: root <root@ubuntu.(none)>
Date:   Sat Aug 2 17:27:01 2014 +0200

    Merge remote-tracking branch 'upstream/rel-3_3' into rel-3_3

commit bf74abd6eb559507cb4d5681891102a12e470190
Merge: f02b900 4607c4d
Author: root <root@ubuntu.(none)>
Date:   Wed Jul 30 14:31:50 2014 +0200

    Merge remote-tracking branch 'upstream/rel-3_3' into rel-3_3

commit f02b900dfd8a5cb494b9a0ccbea86bba36a75c77
Merge: 136a41f 8f0ac05
Author: root <root@ubuntu.(none)>
Date:   Fri Jul 25 11:56:05 2014 +0200

    Merge remote-tracking branch 'upstream/rel-3_3' into rel-3_3

commit 136a41f2ee2a9f0e61836de9b5f576596f929d33
Merge: c4308a7 2fa3875
Author: s7design <otrs@s7designcreative.com>
Date:   Thu Jul 24 10:02:43 2014 +0200

    Merge remote-tracking branch 'origin/rel-3_3' into rel-3_3

commit c4308a779dd555c6fe38165712db0173c510dd46
Author: s7design <otrs@s7designcreative.com>
Date:   Thu Jul 24 10:01:40 2014 +0200

    Fix IDs of elements in the config reference to avoid filename collisions on case insensitive file systems.