Offline type definition installation from cache

[adityapurwa]

I have a very limited internet connection. So, I think it would be great if TSD support offline definition installation from the existing global cache directory.

Bower support offline installation using the -o options. It would be great if TSD have the same feature.

[timbru31]

Yesterday we had build problems due to a power outage and internet outage. Running Maven with the offline option (-o) worked but tsd tried to connect to github.com nevertheless. (and therefore the build failed) It would be nice if tsd would support an offline flag like Maven or Bower do. Thanks, Tim