Feature/moving to directories (#15)
2.1.0:
* feature: you can move projects to different folders now instead of just renaming them
* feature: you can specify a directory to exclude from project reference updates
* feature: the detected VS solution folder is displayed in review
* feature: the detected git version is displayed in review
* bugfix: when called with unnamed arguments, old project name now is understood to come before new project name (before it was the wrong way round)
* bugfix: VS solution folders containing spaces don't crash the tool anymore
