added for completeness.

I think it makes sense to add this, perhaps time to include a bit of theory in a different file.
Merge pull request #64 from zeffii/patch-2

added for completeness.
compactness.
Merge pull request #65 from zeffii/patch-2

compactness.
notes
easier to read.
Merge pull request #67 from zeffii/patch-2

easier to read.
added some spacing to separate if/else from next

from next if else, 
also filled data_matrix using list comprehension to keep it short.
Merge pull request #68 from zeffii/patch-2

added some spacing to separate if/else from next
Baker node
fixes
bakery fixes
evline fixes
todo - from Jimmy
clean rem doubles
+ viewer text improvements
Create Index_Viewer_draw.py

to test
Create node_IDXview.py
Update __init__.py

I think..
Merge pull request #70 from zeffii/patch-2

Create Index_Viewer_draw.py
Merge pull request #71 from zeffii/patch-3

Create node_IDXview.py
Merge pull request #72 from zeffii/patch-4

Update __init__.py
Merge pull request #35 from nortikin/master

sync index bakery