Show edit window and buttons below changes when using PageForms

[WouterRademaker]

Should solve #319.
@ckapop found the issue that was causing this error and a solution. The changes were made suitable for and tested on Chameleon 4.3.0 by @WouterRademaker.

[WouterRademaker]

It fails the PHPUnit tests, but works. What must be done to fix the tests?

[WouterRademaker]

Any thoughts, @malberts ?

[malberts]

Can you rebase this on the latest master? I don't remember if the tests failed because of the code change, or because of some other unrelated CI issue.

However, I still need to look at this. Besides some code style issues (indents), I would like to investigate if this change can happen in a way that does not repeat that same code in all the components.

[WouterRademaker]

As far as I understood it, it was code change, because as far as I remembered it, the error messages were about the ‘getHtml’ function in the PHPUnit tests. I don't know if all these changes are necessary, because after yet another round of tests, I just changed it everywhere.

[WouterRademaker]

I 'm testing the changes now on a chameleon version 4.4.1. No problems yet. https://nl.scoutwiki.org/