added tearDown() to remove temp files
added tearDown() to remove temp files

thedarsideofit/TwigExcelBundle,MewesK/TwigSpreadsheetBundle,MewesK/TwigExcelBundle,MewesK/TwigSpreadsheetBundle,thedarsideofit/TwigExcelBundle,MewesK/TwigExcelBundle,MewesK/TwigExcelBundle,MewesK/TwigSpreadsheetBundle