More fixes for Token Extractor: adding protection against throwing...

More fixes for Token Extractor: adding protection against throwing std::out_of_range (CollectionUtilities-00-02-24)

	* More fixes for Token Extractor: adding protection against throwing std::out_of_range

2015-07-28  Vakho Tsulaia  <tsulaia@cern.ch>

	* Fixing the "empty line" bug in Token Extractor

2015-06-22  scott snyder  <snyder@bnl.gov>

	* Tagging CollectionUtilities-00-02-22.
	* Fix clang warnings: auto_ptr -> unique_ptr.