CardiacMRI:
- Last thing I was dealing with was temporal fft operator that I have put in opFFTxd.m in util directory.
- Problem setup is now kind of realistic:
    - user choose upload cardiac images from dataset
    - he can shose the slice number (1-10 - default is 5)
    - sigma level (0.05 by default)
    - undersampling factor (fold  default is 6)
    - n image size (256 by default)
    - read 3d matrix of n*n cardiac images in szt time points
    - adds noise sigma*var(signal)
    - do 2d circular fft per image and take random lines as specified by mask
    - mask is made to sample n*szt/fold lines in phase encode and time dimensions
    - play movies of original, undersampled cardiac images and mask
    
SMALLboxSetup.m - Installation script:

- Add make call for DL/RLS_DLA/private and Problems/private (still need to 
    shall these be private directories as in KSVD. Files inside are common
    common routines that are used all around, so it makes sense to put them
    in util directory)
  SOLVED: A copy of "ksvd/private" is put into "util/ksvd utils" and istallation
  script will run make command in the directory to compile mex files
- 