Update Vagrant download url to 1.3.5 - #13

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Bump version to 1.3.5 in vagrant.nuspec - #13

Fix #13: Update Vagrant to 1.3.5

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Merge pull request #14 from rogeriopradoj/fix-13

Fix #13: Update Vagrant to 1.3.5