Merge pull request #660 from d3xter/go_vet_background

Run GoVet in background
Change in the For*Intention and ifIntention to generate through templates.
Merge pull request #665 from josehsantos/template_generator

Change in the For*Intention and ifIntention to generate through templates
Update SDKs after setting GOPATH
Unify access to GOPATH
Better message
Improved description and added path sanity check
Convert some errors to warnings