Temporary experimenting with double standardization.
Merge branch 'master' of github.com:gustavla/vision-research
Double standardization ready for testing.
Makes it save the standardization stuff.
Merge branch 'master' of github.com:gustavla/vision-research
Fixed typo bug.
Merge branch 'master' of github.com:gustavla/vision-research
Removed safe_eval (must have done this in so branches by now)
Added voc-profile2 and changed edge threshold.

- Requires an experimental update of amitgroup, that let's you pass along
  unspread edges to code_parts.
- The parts' edge threshold is now expressed in average edges per pixel for
  unspread edges. This way it should not need to be changed (at least not
  nearly as much), if you change part size/frame and spread radius.
- Added a new temporary data set: voc-profile2.
Minor tweaks and fixes.
Merge branch 'master' of github.com:gustavla/vision-research
Added _scores function and made possible to standardize using nearby bkg clusters.
Merge branch 'master' of github.com:gustavla/vision-research into bkg-mixture

Conflicts:
	detector/plotting.py
	detector/summary_statistics.py
	detector/test_model.py
	detector/train_superimposed.py
	gv/datasets.py
	gv/detector.py
	gv/voc.py
Merge branch 'bkg-mixture' of github.com:gustavla/vision-research into bkg-mixture