[imp] improved i18n to scan all files

addons/base/po/base.pot

addons/base_calendar/po/base_calendar.pot

addons/base_dashboard/po/base_dashboard.pot

addons/base_default_home/po/base_default_home.pot

addons/base_diagram/po/base_diagram.pot

addons/base_gantt/po/base_gantt.pot

addons/base_graph/po/base_graph.pot

addons/base_hello/po/base_hello.pot

addons/web_chat/po/web_chat.pot

addons/web_mobile/po/web_mobile.pot

babel.cfg

npybabel.py