[TYPO3-core] RFC Bug #17297: The column headers of the grid view are swapped when there is no column header available

[JoH asenau]

This is an SVN patch request.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=17297

Branches:
trunk

Problem:
While working with the grid view there are two additional column headers 
"not assigned" and "no edit access".

They are swapped unless there is a column name set in the grid view 
setup resulting in a wrong information of the user about existing 
columns and their access rights.

Solution:
Attached patch changes the behaviour to look for an existing colPos 
value to find out if a column is assigned.

Cheers

Joey

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