[FIX] all: change confusing labels on Cancel buttons in form views

bzr revid: odo@openerp.com-20130304184431-1p8byycyl0nv26qx

diff --cc addons/account/account_invoice_view.xml
Simple merge

diff --cc addons/account/account_view.xml
Simple merge

diff --cc addons/crm/crm_lead_view.xml
Simple merge

diff --cc addons/crm/crm_phonecall_view.xml
Simple merge

diff --cc addons/crm_helpdesk/crm_helpdesk_view.xml
Simple merge

diff --cc addons/project/project_view.xml
Simple merge

diff --cc addons/purchase/purchase_view.xml
Simple merge

diff --cc addons/sale/sale_view.xml
Simple merge

diff --cc addons/sale_stock/sale_stock_view.xml
Simple merge

diff --cc addons/stock/stock_view.xml
Simple merge