Use repository name instead of full template string

Consider command `hoodie new project thiagofelix/hoodie-angular`
Without a fix, it resulted in the following error:

```
Could not fetch project from https://github.com/thiagofelix/thiagofelix/hoodie-angular.git
something went wrong...
```
Merge pull request #93 from irnc/patch-new-template-repo

Use repository name instead of full template string when building Git URL