Added rakefile to more easily start default powershell build
Added rakefile to more easily start default powershell build

r2i-sitecore/dotless,dotless/dotless,modulexcite/dotless,modulexcite/dotless,r2i-sitecore/dotless,r2i-sitecore/dotless,modulexcite/dotless,r2i-sitecore/dotless,rytmis/dotless,modulexcite/dotless,rytmis/dotless,modulexcite/dotless,rytmis/dotless,rytmis/dotless,r2i-sitecore/dotless,r2i-sitecore/dotless,modulexcite/dotless,modulexcite/dotless,rytmis/dotless,rytmis/dotless,dotless/dotless,r2i-sitecore/dotless,rytmis/dotless