v1.4.2

NESSie v1.4.2

Diff since v1.4.1

Merged pull requests:

• Backports 1.4.2 (#11) (@tkemmer)
• Documentation updates and fixes (#10) (@tkemmer)
• Base: fix ∇φmol w/ empty charge lists (#17) (@tkemmer)
• Fixes for NonlocalXieModel1 (#25) (@tkemmer)

Closed issues:

• Wrong return value/type for ∇φmol w/ empty charge list (#16)
• TestModel.scalemodel fails for single-charge systems (#21)
• NonlocalXieModel1: origin as observation point yields wrong energies (#22)
• NonlocalXieModel1: precomputation of coefficients fails if charges are located in the origin (#23)
• NonlocalXieModel1: different born potential definitions used for charges (not) located at the origin (#24)