Merge pull request ddeboer#126 from ushahidi/add-pdo-reader

Add PdoReader

Merge pull request ddeboer#96 from gries/item_converter_breaks_mappin…

…gs_fix

Fixed php-error "undefined offset" when adding an item-converter and multiple mappings

Merge pull request ddeboer#93 from AydinHassan/workflow-result

WIP: Return Result Object

Improve Excel reader performance and compatibility

Merge pull request ddeboer#80 from ddeboer/csv-delimiter

Change default CSV delimiter to comma (fix ddeboer#79)

Limit symfony/console version at 2.4

Merge pull request ddeboer#76 from WeareJH/hotfix/import-exception-in…

…terface

Hotfix/import exception interface

Fix ddeboer#62: queues being assigned by reference

Clone priority queue before iteration (fix ddeboer#60)

Merge pull request ddeboer#58 from ddeboer/priority

Add filter priority