Adds initial files
Some fixes, adding testfiles for import
Fixes export and import
Fixes tests for language support
Fixes attribute export and import
Merges update
Cleans the code
Merge pull request #2 from nsendetzky/master

Adds clone in TestHelper::getContext() so changes in tests don't affect other tests
Merge pull request #3 from nsendetzky/master

Handles file extensions itself
Merges actual state
Fixes unittests
Makes tests cleaner, fixes internalization
Merge pull request #4 from doleiynyk/2013-11-13_Export_Import_Controller

Moves PHPExcel tests for export/import controller to ext-phpexcel