0.1.22 Fixes to support Vagrant 2.4.3

[JoelProminic]

@PanProminic and @piotrzarzycki21 reported some errors with Vagrant 2.4.3:

1. First was:

Path: /Users/piotrzarzycki/Library/Application Support/SuperHumanInstallerDev/servers/demo-tasks/6530/core/Hosts.rb
Line number: 0
Message: undefined method `exists?'

I resolved it by changing that method to 'exist' - exists seems to be deprecated with newest Ruby. After my changes I got:

There was an error loading a Vagrantfile. The file being loaded
and the error message are shown below. This is usually caused by
a syntax error.

Path:
Line number: 175
Message: NoMethodError: undefined method `=~' for an instance of Integer
[SHI]: 'vagrant up' stopped with exit code: 1, elapsed time: 00:00:01

Issue is in Hosts.rb file in line 175 - I did tweak that part and it's working for me, but it is rather workaround. I just wanted to point you and bring this to your attention, because some of us may want to upgrade stuff on their system and bump into these issues.

I think we can resolve these problems in this file: https://github.com/Moonshine-IDE/Super.Human.Installer/blob/master/Assets/provisioners/demo-tasks/0.1.22/scripts/core/Hosts.rb

Note that this is already fixed in the 0.1.23 provisioners, which are not merged yet (#118). However, the 0.1.22 provisioners will still be available in the UI unless we remove them.