Increasing version number for deployment to PyPI

Merge pull request PMEAL#682 from PMEAL/deploy_to_pip

adding version number to openpnm, setting up autodeploy to pip

Merge pull request PMEAL#665 from PMEAL/fix_interleave_data

fix the bug in interleave data

updating version number in init

Update __init__.py

updating __version__ in the __init__ file

Merge pull request PMEAL#538 from PMEAL/fix_add_boundary_pores_bug

fix_add_boundary_pores