used boost::property_tree::info_parser for parsing nlsr's configuration file and
changed configuration command style to info command style. Removed tokenizer from
nlsr
Refs: #1542
Change-Id: If017ddd7eef5caa59b33940bfc27a71aa4de266b
This commit aims only at correcting building system and adding unit-test framework.
Existing test cases (ChronoSync) are disabled temporarily and will be fixed later.
Minimum changes are made, so that the code can be built successfully.
Compiling warnings will be resolved in a later commit.
Refs: #1495
Change-Id: Ibf7119bbd77b6307cb58bbee47b61d7a7312df98