Deploying Laravel 4 on shared hosting server (hostgator)

I would appreciate your help. I really don't know where else to turn to. I can't deploy a L4 app to Hostgator. I read the guide on the forums, but my shared HG account already has many apps under public_html so deleting it would be catastrophic and a risk I cannot afford to play with.

Is there a way to deploy L4 app like any other normal apps?

What I am trying to do is the following:

home/myuser/public_html/domain.com/laravel/               <--- where the app should live
home/myuser/public_html/domain.com/laravel/dev          <--- dev environment

in both of these folders there is a separate git repository (via ssh). with remotes dev and prod

so what I simply want to achieve is:

git push prod

and

git push dev

but when I push, I am getting a message:

dev/bootstrap/../vendor/autoload.php) [function.require]: failed to open stream: No such file or directory

/dev/bootstrap/../vendor/autoload.php' (include_path='.:/opt/php53/lib/php') in