[FIX] *: various fixes in xml views

addons/account/views/res_config_settings_views.xml

addons/base_automation/views/base_automation_view.xml

addons/base_gengo/views/res_config_settings_views.xml

addons/base_setup/views/res_config_settings_views.xml

addons/hr/views/hr_employee_views.xml

addons/hr_holidays/views/hr_leave_allocation_views.xml

addons/hr_holidays/views/hr_leave_views.xml

addons/mail/views/mail_message_views.xml

addons/mass_mailing/views/mailing_mailing_views.xml

addons/mrp/views/ir_attachment_view.xml

addons/mrp/views/mrp_unbuild_views.xml

addons/mrp/views/mrp_workorder_views.xml

addons/payment/views/payment_views.xml

addons/point_of_sale/views/pos_config_view.xml

addons/product/views/product_pricelist_views.xml

addons/product/views/product_views.xml

addons/sale/wizard/sale_make_invoice_advance_views.xml

addons/sale_coupon/views/sale_coupon_program_views.xml

addons/sale_timesheet/views/project_task_views.xml

addons/stock_sms/views/res_config_settings_views.xml