Maintenance Release

Minor fix release.

• Improvements
  • Improved documentation. PR #64 and #68. Thanks to Geert-Johan Riemer
• Fixes
  • Fix a bunch of golint notices. PR #69, Thanks to Geert-Johan Riemer
  • Connection.Read() total bytes count on error. PR #71, Thanks to Geert-Johan Riemer
  • Fixed a race condition on objectMappings map. PR #72, Thanks to Geert-Johan Riemer
  • Fixed a few uint -> int convertions.