Merge pull request #520 from nelenkov/dev

added date to RevenueSummary; don't insert new rows each time
Merge pull request #521 from nelenkov/dev

don't try to add column twice
replaced HEADER_List with first line, since old exports can't be shown in the import dialog due to changed length of the headerlist, this should be fine since we use this piece of code to gather the package name.
compile ABS against v18
updated opencsv 2.2-->2.3 (import export still working for me)
Merge pull request #524 from AndyScherzinger/dev

replaced HEADER_List with first line, since old exports can't be shown in import dialog
Closing writers and readers at the end
Merge pull request #525 from AndyScherzinger/dev

Closing writers and readers at the end
Update German translations
Update Polish translation
translation updates (still wip)
Merge pull request #526 from AndyScherzinger/dev

translation updates (still wip)
Lang update (basically just Japanese but commit all files)
Merge pull request #527 from AndyScherzinger/dev

Lang update (basically just Japanese but commit all files)
experimenting with AdSense API support