Adding definitions to build output

Adding typescript definitions files to build output.  

I use the typescript services in my [atom-typescript-tools](https://github.com/park9140/atom-typescript-tools) and need the typescript definitions in order to write typescript correctly.  

Sorry, about the removal of trailing whitespace, you guys should really add some style checking to the project to eliminate this kind of issue.
just define separate vars, we don't use comma separated declaration lists like this