Move the include file to launcher
Remove unnecessary includes

These are probably left over from when vCloud Tools supported everything. I thought that some of them might need to be moved to where they are actually required, but it looks like none of them are required at all.
Remove SimpleCov

This tool is not useful - the coverage for this project is much lower than it should be, and even when the coverage is high it is not necessarily showing what we think it is - see, for example, d3ae38c888.
Namespace logger
Remove unnecessary dependencies from Rakefile
Rename gemspec, and update and tidy it