Set fileformat unix

I was converted to the LF from CRLF line endings.

The following are the details:
```
$ git clone https://github.com/flightjs/example-app.git
Cloning into 'example-app'...
remote: Counting objects: 818, done.
remote: Compressing objects: 100% (465/465), done.
remote: Total 818 (delta 321), reused 811 (delta 316)
Receiving objects: 100% (818/818), 990.10 KiB | 425.00 KiB/s, done.
Resolving deltas: 100% (321/321), done.
Checking connectivity... done

$ cd example-app
$ git status
# On branch master
# Changes not staged for commit:
#   (use "git add <file>..." to update what will be committed)
#   (use "git checkout -- <file>..." to discard changes in working directory)
#
#       modified:   components/jquery/jquery.js
#       modified:   components/jquery/jquery.min.js
#
no changes added to commit (use "git add" and/or "git commit -a")

$ git add ./
warning: CRLF will be replaced by LF in components/jquery/jquery.js.
The file will have its original line endings in your working directory.
warning: CRLF will be replaced by LF in components/jquery/jquery.min.js.
The file will have its original line endings in your working directory.
 ```