v1.4

• Added code to read meteo data on model levels.
• Allow for meteo data at -180..+180 or 0..360 degrees.
• Implemented different options to get surface pressure.
• Removed nearest neighbor and cubic interpolation schemes.
• Added profile output.
• Revised grid and sample output.
• Use fixed units for known quantities.
• Removed sampling code.
• Added example script.