Added the following options in Settings page:
Mark As Optional - If this is enabled, all vouchers imported in Tally using udiMagic are marked as Optional. By default, this setting is disabled.
Batch Processing - If this option is enabled, then the "Import data from multiple Excel files" is displayed in udiMagic.
udiMagic v12 r6.9
Delete the corrupt downloaded application (executable) if checksum does not match.
udiMagic v12 r6.7 to r6.8
Updated code for performance improvement.
