Fix capitalization in git URL

Github clone URLs are case sensitive. This patch updates package.json to use the correct capitalization for the git repository URL.

```
$ git clone http://github.com/BonsaiDen/fomatto.git
Cloning into 'fomatto'...
Username for 'http://github.com': ^C
$ git clone http://github.com/BonsaiDen/Fomatto.git
Cloning into 'Fomatto'...
remote: Counting objects: 314, done.
remote: Compressing objects: 100% (129/129), done.
remote: Total 314 (delta 151), reused 310 (delta 148)
Receiving objects: 100% (314/314), 61.69 KiB, done.
Resolving deltas: 100% (151/151), done.
```