Merge branch 'nan_to_inf' into 'NIFTy_6'

Add possibility to cast NaNs to Infs in KL

See merge request !488
11 jobs for NIFTy_6 in 8 minutes and 52 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build Docker
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build_docker_from_cache

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  Test
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test_mpi

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test_serial

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  Demo Runs
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run_bernoulli

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run_curve_fitting

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run_getting_started_1

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run_getting_started_2

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run_getting_started_3

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run_getting_started_mf

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run_ipynb

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run_visual_mgvi

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