Added portable logging capability (debug and error messages) with Log.hpp/.cpp. Added ability to specify the line delimiting characters in CsvCpp::Parser, closes #3. Added related unit tests for various types of delimiters. Added unit test for when the last line does not have the line delimiting character. Edited README. Parser no longer causes segmentation fault if last line does not have a line delimitier, closes #1. Unit tests no longer leave left-over test.csv files, closes #2.