[WIP] Multi website
[FIX] New page.
[ADD] cache for get_current_website() (remove one query per request)
[IMP] Context.
[FIX] get_current_website domain check outside of cache
[IMP] misc changes
[REM] Remove multi-website support from <template> tag

This should be done later properly without polluting convert.py
[ADD] Added custom search view for website.menu
[IMP] avoid 1 query per t-call
[FIX] request.website browse record bad context
Merge pull request #2300 from odoo-dev/master-website-multi-sig

[MERGE] Domain name based multi website