Fix for 'up' and 'halt' action

[x] 7028281 fixes #14
[x] 8a2d5af changes the VM IP definition method as @knazarov posted here: https://github.com/yshahin/vagrant-parallels/issues/3#issuecomment-23938160
[x] 188db13 - renames `Guest Additions` to `Parallels Tools` and `Guest Tools`
`Parallels Tools` - is the correct name of client components in Parallels Desktop (not the 'Guest Additions')