The server adapter editor should notice if it's deploy project is removed/recreated

How to reproduce:

1. EXEC: launch OpenShift Application wizard and create some application
2. ASSERT: the applicaiton is imported into a project in your workspace and the server adapter for it is created
3. EXEC: open the server adapter editor
4. ASSERT: Deploy Project combo is enabled and shows the workspace project
5. EXEC: delete the project from your workspace

Result:
Deploy project is still selected even though the project was deleted. It should live react to this removal, remove the project from the combo.

Workaround:
Close and reopen the server adapter editor.

(btw. the server adapter will inform you when you try to use it to publish. It'll tell you that the project it is bound to is not existing any more)