[IMP] Display 'Direct inheritants' ir.ui.view form

This way, it's easier to create an inherited view 'on-the-fly' from the developer mode.
And it's even more handy if you want to inspect or modify an existing inherited view.
[IMP] Change tab name to keep it simple

As odony advised.
Merge pull request #716 from sve-odoo/patch-5

[MERGE] ir.ui.view: display inherited views in form view