[FIX] website.theme: when the user does not raise an exception. Display error message when the user install or customize a theme.
[FIX] tour: don't display all log when log an error
Merge pull request #1781 from odoo-dev/master-fix-theme-need-alltime-less-chm

[FIX] website.theme: when the user does not raise an exception.
Merge branch 'master' of https://github.com/odoo/odoo into master-win32