[REM] toggle labels

Github labeling system may not be the best but this was not a good idea either, getting too much spam on pull requests
[IMP] runbot: rebuild using POST request

Force rebuild links were using GET method. We don't want crawlers to rebuild old builds....
[FIX] runbot: typo in controller methods
Merge branch 'master' of github.com:odoo/odoo-extra into 8.0-vauxoo
[FIX][runbot] Add validation to add params --max-cron-threads only if exists in config.py
Revert "Merge branch 'master' of github.com:odoo/odoo-extra into 8.0-vauxoo"

This reverts commit 4c784ed4100d8e4ab7b177b38d10a609be8c005b, reversing
changes made to d695e8f31b1ea48c9689c78c461e98206f53544d.
Merge pull request #21 from vauxoo-dev/8.0-vauxoo-fix-max-cron-threads-dev-moylop260

[FIX][runbot] Add validation to add params --max-cron-threads only if exists in config.py