[Tokenizer] Added an encoding option (default is UTF8 as always).  Needed this to encode batch files in ASCII.  Also added the TemplatePath parameter so you can update tokens in a specific folder.  Also, updated the lacking documentation.
Merge branch 'develop' of https://github.com/GSoft-SharePoint/Dynamite-2010 into develop

# By Thomas-Antoine O'Neill
# Via Thomas-Antoine O'Neill
* 'develop' of https://github.com/GSoft-SharePoint/Dynamite-2010:
  [Cache] Add overload to ICacheHelper so that you can choose to disallow the caching of null values - The default is still isNullValueAllowedInCache == TRUE, but at least now you have a choice to prevent caching of NULL
  [Queries] Added Modified Date field to base entity - TODO comment to signal that our UserValueDataRowConverter is pretty useless - QueryHelper now makes sure to add ContentTypeId feild whenever you fetch the viewfields for a specific entity type