Updating to 0.1.0 for nuget package
Adding proper syntax higlighting in README
#2 Returning a command instance from cmd
#2 Updating README
#2 Updating to 0.2.0

Also adding a post build event to create nuget package
#3 Introducing the concept of Shells

Can use shells like Cmd and Powershell to run commands from them
#3 Adding ProcessRunner to default shell
Fixes #3 cmd shell commands can be run now
#3 Updating README
Adding a dsl test for using shells
Moving around tests to match source
Adding test for CmdCommando