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--- 21-May-2015, version 0.1.4
- New functionalities:
   - new function cubePlot to produce a 3D plot of a HyperSpecRaster
   - brick method for Speclib
   - wavelengh method for HyperSpecRaster
- Bug fixes:
   - HyperSpecRaster-method for Speclib returns HyperSpecRaster-object 
     (instead of RasterBrick)
   - row.names of spectra are correctly used as ID in speclib 
     (for createspeclib-function)
   - r.squared value is returned by lm.nri if NRI-values are predictors
   - constraint in plot.Nri selects correct layer in respective 
     coefficient

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--- 30-April-2015, version 0.1.3
- New functionalities (suggested and supported by Andr Groe-Stoltenberg):
  - Function for soil indices implemented (soilindex)
  - In soilindex and vegindex, user defined indices can be passed
  - Gaussian model on soil spectra implemented (Special thanks to Michael Whiting 
    for providing his IDL code and helping on the development of the FORTRAN implemention)
- Bug fixes:
  - transform_speclib: The bugs only affected the continuum hull
  - vegindex: Some indices were missing or calculation was faulty

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--- 08-April-2015, version 0.1.2
Starting this log
