Newarenda

Fixed
- Issue 20, files failing to load.
- Updates to README.

Added
- Significant performance improvement.
- PEP8 code formatting consistency.

Fixed
- Issue 22 that occasionally resulted in incorrect temperature values.

Added
- Support for additional current ranges and states

Fixed
- Maintenance updates and code cleanup

Changed
- Conditions used for locating first data record

Added
- Additional current ranges

Fixed
- Improved performance and reduced memory usage.

Added
- Commandline nda file conversion tool
- Performance improvements

Fixed
- Added missing status and current ranges

Changed
- 'Jump' field removed
- Default index is used for the DataFrame and set_index() is no longer called

Added
- Performance improvements

Fixed
- Added missing status and current range