[IMP] website.snippet: create automatically the thumbnail; data-option became data-js; add data-eval method; rename check_class into toggle_class
[IMP] sale: Allow to set a default value on the SO based on the Sales Team

As the different sales teams might have different sales workflows, this will allow the user to define the shipping policy based on the sales team.
This will be particularly useful to differentiate the workflows of e-commerce sales and usual sales.
[FIX] website.snippet: the background option is not readily usable by the designer
[IMP] Bundle invalidation won't use watchdog afterall
[IMP] refactor bundle ir.attachment cache invalidation
[IMP] account_budget: default value

Adding a context which ease budget encoding as really often, creating a budget means the associated budget lines will follow the same start and end dates. Passing the context allow budget lines automatically have the budget's start and end date
Merge pull request #2050 from odoo-dev/master-theme-review-chm

[IMP] website.snippet: create automatically the thumbnail; fix background
[IMP] qweb debug mode restricted to --dev mode

Also moved the set_trace call in top of render_node() function so it
makes more sense.