Vagrant commands to automatically include SSL_CERT_FILE and CURL_CA_BUNDLE if they are set

[pdmthorsrud]

A proposed solution to #43. Will not fail if the env variables are empty.
Example below:

closes #43

[pdmthorsrud]

As Nikita pointed out, the vagrant up I've modified here does actually not go to vagrantcloud, so it isn't necessary, but it shows how it could be done other places where vagrant up fails with an SSL error when SSL_CERT_FILE and CURL_CA_BUNDLE is not set.

Added an update and up rule in the root directory to show possible solution.

[zhenik]

Current solution work fine.
I tested it with

• Mac, no transparent proxy, home-wifi network
• VDI, transparent poxy, office network

[pdmthorsrud]

I also like this approach because it assume no transparent proxy as default, and if they are behind a transparent proxy it forces a change within their own system, nothing in our source code. At the same time we don't need to make different versions of the rules in our makefiles etc., meaning the way you use our code will always stay the same.