Increase timeout limit on Capybara to minimise intermittent failures.
Increase timeout further.
Automatically load site skins on Test after deploy

It also includes reorganising and tidying up the deploy-defining files. Moved production-only and staging-only tasks to their respective file.
Merge pull request #1613 from CristinaRO/deploy-skins-and-tidy-up

Automatically load site skins on Test after deploy
Issue 3965: replace unicode commas to allow for separate tags
Merge pull request #1615 from elzj/issue_3965_unicode_commas

Issue 3965: replace unicode commas to allow for separate tags
Merge pull request #1591 from ariana-paris/CI_timeout

Increase Capybara timeout for CI servers