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LoadError is not a StandardError in ruby, and has to be handled explicitly.
Add mocking for winssh.

Be silent about the fallback for info calls, and handle winssh
correctly when running jobs.

Allows global default settings of e.g. #cpus or memory of machines.
Some are explicitly handled later.

Load order is a bit incorrect here: settings are merged first, then
applied to machines. Good enough.

Includes all the interpretations and implicit configs etc.
Useful for debugging.

And improve output a bit.

It's confusing to talk about boxes in the context of minicoin, as vagrant
boxes are already a defined thing.

Also, look for local overrides in a hidden .minicoin
directory rather than plain minicoin.

Speeds up things a bit more, avoiding a roundtrip to the provider in
the usual case where the machine is running. Also, silence stderr
output from the first upload attempt, which gets rid of one of the
warnings about experimental flag usage.

minicoin info [vm] prints OS, communicator, and guest home path
so that the run_on script can access this information quicker.

Requires some minor changes to variable expansion, and mocking backend.

The load order is global, user, local for boxes; and local, user, global
for roles and jobs.

This allows the user- and project- specific specialization of boxes,
and user- and project-specific definitions of roles and jobs.

That way we can default to forwarding of RDP for Windows guests.

The benefits are marginal, and don't justify the complexity and fragility
esp when interrupting a running job.

A better solution would perhaps implement the wait-loop on the guest
anyway, either simply running in a loop until the job is removed, or
waiting for a trigger (which then again requires costly communication).

Fix failure when running "minicoin list", after marking data as sensitive

Also, turn auto-indexing on for nginx.

After a day of debugging issues with VMware Fusion, write down some
make note of the issues and ways to shoot the troubles.

* Azure box has guest OS set
* VirtualBox and VMware boxes have updated guest additions and are smaller

If set, print diagnostics from the run helper on Windows.
Also, throttle output better.

The Azure Load Balancer has a default idle timeout of 4 minutes. If there is
no traffic, then the connection dies, making vagrant wait for output.

Since the installer runs for longer than that, we need to keep the connection
alive through a heartbeat signal. Use a background job to run the
installer, and wait for that job while keeping both output and heartbeat
signal going over the network.

Using the same method as the azure plugin, but preventing vm_name
to be longer than 15 characters in case of Windows boxes, as otherwise
the deployment fails, with a dangling resource group.

For now, only used by the shell provisioner. Unfortunately, vagrant
waits forever for a Windows machine to reboot (but it does reboot).

Run

$ minicoin install macos1014 cmake,ninja

to install cmake and ninja on a running machine.

Supports Windows (chocolatey), macOS (homebrew), and apt/yum for Linux.