Fix error on "vagrant up" under Iindows host:

    Bringing machine 'default' up with 'virtualbox' provider...
    There are errors in the configuration of this machine. Please fix
    the following errors and try again:

    vm:
    * The shared folder guest path must be absolute: src

Using /src fails during puppet stage;

    No such file or directory - /home/vagrant/src/requirements/local.txt.puppettmp_3880
    Error: /Stage[main]/Python/File[/home/vagrant/src/requirements/local.txt]/ensure: change from absent to present failed: Could not set 'present' on ensure: No such file or directory - /home/vagrant/src/requirements/local.txt.puppettmp_3880 at 42:/tmp/vagrant-puppet/modules-0/python/manifests/init.pp
    Warning: /Stage[main]/Python/Exec[install-requirements]: Skipping because of failed dependencies

Using hard coded /home/vagrant/src.
Ensure Unix specific files retain Unix line endings.
Merge pull request #55 from clach04/vagrant_winhost

Vagrant support Windows as a host