added a minor TODO to README
updated .gitignore and cleaned up untracked files
- SIR_Fourier, made axial plot optional
- re-organized exec and lut methods somewhat
- seems to have broken axial plot lut display
modified loadLut method in SIR_Fourier - now static, TODO, tidy and move to I1l
moved loadLUT method to I1l, updated SIR_Fourier and Raw_ModContrast
- modified LUT loading,
  - single static load for plugin
  -  fixed SIR fourier ortho setting
- updated README
- incorporated feedback from IMP facility manager into README
- updated Wiener estim
updated .gitignore