Handle spaces in parent page names

[rajbos]

Seems like spaces in parent page aren't handled.

When I pass in --parent 'Acceptance Tests' and have debug logging on, I see a search request being made with the space in it, and the parent page is not found. Then the parent is created with a POST, which fails since the page already exists.

When I pass in --parent 'Acceptance+Test' to try the way Confuence handles this, I see a search request being made with that exact string, which is not found and a new Parent page is made with the plus sign in it.

I'm now using a parent page without any spaces to get it to work. Would be great if I could use a 'normal' name to make this more useful for the user.

[justmiles]

Fixed in v4.0.0-alpha-2