Make the import properties wizard find out for it self how the values in
the data file are separated and not depend on the file extension. It
also make it able to handle a file with a "missing" top left element,
e.g. a file where the data has both row- and column-header.
Makes the column matching in the add-properties-to-a-SD-file-wizard work
better.
Updates the help page. It also adds an example the the help page.
Makes the import properties to SD-file wizard able to handle data files
with values separated with semicolon as well
Makes the delimiter-string non-static, also removes a unnecessary comma.
Merge pull request #35 from KlasJoenssson/Bug3579

An update of the wizard for adding properties to SD-files