fix #984
Make it possible to fully disable RSS.

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Merge pull request #1236 from getnikola/disable-rss

Cannot render site without RSS
Merge pull request #984 from getnikola/remove-schedule_force_today

SCHEDULE_FORCE_TODAY is redundant?
fix scheduling tests

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Merge branch 'master' into github-deploy