Fix test of import measure xls
Move the code of the various import_ commands that are called by
load_blockbox_data into import_helpers.
Use a new function map_over_sheets() for all Excel work so that all error messages can mention the filename and sheet name
Add link to the automatic import page from BlockboxView
Fix breadcrumbs, content actions when on automatic import page
Fix problem in automatic import page that constantly closed the output span again
Flush database before loading blockbox data
Merge pull request #40 from lizardsystem/remco-rest-of-automatic-import

Remco rest of automatic import