Zombie Gopher
- Audit shell exports
- Fixes GOROOT/GOPATH paths
- Fixes syntax deprecation warnings
- Moves platform-specific tasks into their own files.
- Moves go1.4 default location to /usr/local/go1.4/
- Changes paths of travis tests to match the changes of the role
- Now completely isolates GOPATH from GOROOT and will work with them in separate locations.