new release v0.2.0

* Add vtk.utils.color on window package

* Update Readme, codecov, travis...

fix v0.1.2 conflict

hotfix: update setup.py for python 2.7

Second public release

Initial FURY release based on split from DIPY

- from dipy.viz.actors to fury.actors
- from dipy.viz.window to fury.window
- from dipy.viz.ui to fury.ui
- from dipy.viz.widget to fury.widget
- from dipy.viz.interactor to fury.interactor
- from dipy.viz.colormap to fury.colormap
- from dipy.viz.utils to fury.utils