Added PdoWriter, Added writer exception to stop PDO exceptions leaking, updated readme, added PdoWriter tests
Unit Test to show that exceptions are not caught
Fix Import
Merge pull request #76 from WeareJH/hotfix/import-exception-interface

Hotfix/import exception interface
Add Optional second paramater to DateTimeValueConverter to format output
Merge pull request #74 from WeareJH/date-formatter-filter

DateTime Fomatter converter
Merge pull request #71 from warmans/feature/pdo-writer

Added PdoWriter
Use Symfony 2.5 ProgressBar Helper + allow option to set verbosity