[FIX] view_list: hide pager in view group

Displaying the pagert in view group does not make sense as it's not updated when changing filter and every group (even if more than 80) is displayed in view group
[FIX] view_form: backport of commit 180212b9996c049eacf06fd15b00087944fca869 (opw 609787)
Merge branch '7.0' of https://github.com/odoo/odoo into 7.0-win32