* Added new parameters to the configuration for weight scaling
* Updated documentation for the new weight scaling parameters
* Refactored CharDelimFileAnalyzer, DataBaseAnalyzer and DataSourceAnalyzer classes
* A new object called AnalysisObject to be used in CharDelimFileAnalyzer
* Implemented reset method for CharDelimFileReader
* Added new methods to LinkDBManager for weight scaling
* Added methods to store/get the unique number of non null tokens in a DataColumn
* Added methods for weight scaling to LinkDataSource
* Modified getScaleWeightColumnNames in MatchingConfig to use included columns
* Added scale weight parameters to MatchingConfigRow
* Modified XMLTranslator to set null and non null count, and parse the new configuration file with weight scaling parameters
