CSV Parser 2.2.0

• Fixed bug which caused inaccurate serialization of floating point values in CSV Writer as reported by #188
  • Bug affected numbers close to 10 ^n; was caused by usage of inaccurate std::log() function (see: https://stackoverflow.com/questions/1489830/efficient-way-to-determine-number-of-digits-in-an-integer)
• Fixed issue where strings consisting of numbers and dashes (e.g. phone numbers) were inaccurately identified as integers
• Silenced some compiler warnings