Merge branch 'metric-fix' into pr/2

Update requirements.txt (#1)

Added a fix to the metric: corrected indexes mismatch, and added zeromean normalization

add streaming support

add requirements

update proc to include __imagekey__

Update README.md

Update README.md

Update hoho/wed.py

Update hoho/__init__.py

Update hoho/__init__.py

Create wed.py

add more vis

coordinate system

coordinate system

coordinate system

coordinate system

coordinate system

updates

add files

fix import

fix import

first commit

first commit

Create setup.py

Create hoho.py

initial commit