Lots of cleanup & fixes

• Fixed duplicate import issues
  • Product Keys are trimmed prior to import
  • Product Name is added to the record so that different products with same key are not removed by KeyPass built-in deduplicator
  • Newlines are correctly removed in Product names
• Fixed filetype support (now support old and new MSDN export formats)
• Now imports additional fields including ClaimedDate, KeyRetreivalNote, and Notes
• Key/Description fields are HtmlDecoded prior to import as they are occasionally HtmlEncoded in the xml file
• Updated binary refs to latest version
• Updated version in AssemblyInfo
• Tidied up some variable declarations to be more discrete