Improve vagrant conf to manage hostname

Now, we use vagrant plugin hostmanager to set up hostname
in VM and domain on host. We've chosen account-manager.local
	modified:   .vagrant-provisioning/utils.sh
	modified:   Vagrantfile
Remove vagrant configuration

I've detected slow behavior with nodemon and vagrant shared_folder for
auto restart sails application. Same behavior with nfs shared_folder.
Now, we use docker container to nodejs dev environment
	modified:   .nodemonignore
Run dev environment with docker container

Add Dockerfile to install nodemon via npm.
Improve .nodemonignore.