Merge pull request #73 from aheld84/master

fixes parts of #68 (input of units broken ...
Merge pull request #74 from aheld84/master

fixes #72 (remove explicit python version from shebangs or ...
Merge pull request #75 from aheld84/master

fixes #71 (ImageVisualizer: colorbar and title are inconsistent)
Merge pull request #77 from aheld84/master

adds README.md
configures release for v1.0b3