odml.base.sectionable.itersections extended with filters
added test for the itersections method
added iterproperties and itervalues
added tests for iterators
iterators written with breadth-first algorithm. added max_width parameter
Merge pull request #22 from stoewer/master

Dtype constants and property constructor
fixes for iterators
Merge pull request #20 from asobolev/master

iterators with filter for sections, properties and values for odml.base.sectionable
Move the value paremeter of the Value init method

The value parameter of Values init method is now moved to the end of the parameter list. This means that Value(5) is now equivalent to Value(data=5).

This fixes #18
Launch test suite with setuptools.

call `python setup.py test` in order to run all unit tests.

This fixes #10