Don't import "<global namespace>" when the class isn't in a namespace

[pipe01]

This is useful the most when working with Unity, as the default is to not use any namespaces. Removing the item from the completion list would be fine, as importing it isn't needed.

[Dreamescaper]

Fixed in latest master. I need to fix several things before pushing it to Marketplace, but you can get VSIX from latest appveyor build if it bothers you a lot.

https://ci.appveyor.com/api/buildjobs/huaw5trf3rlmxj3t/artifacts/IntelliSenseExtender%2Fbin%2FRelease%2FIntelliSenseExtender.vsix

[pipe01]

Awesome, thanks!