Incorporate Use of Vagrant

[jalcine]

Add support for Vagrant to make it a lot easier to test for other platform versions of installed Vim like Debian, Ubuntu and Arch.

Also, provide a target for ubuntu/precise32 to allow for testing on a Travis-ish environment.

• Test against a Travis environment.
• Test against latest Debian.
• Test against latest Arch.
• Test against latest FreeBSD.

That should cover quite a few basis. Damn you Windows.