Different projects can use different typescript versions, and it can be irritating to have to change Sublime's global config to change typescript_tsdk. Two things could alleviate this:

• Allow specification of typescript_tsdk in Sublime's project settings.
• Automatically check if node_modules/typescript/lib exists in a project, and if so, use it.
  The second option would quiet almost all of the 'how do I use a different version of typescript?' questions ever asked, as the project's build version would then be used by default in almost all cases.