Automatically deny submissions for expired content daily, close #753.
Revamped users#show to close #736; removed a CSS attribute for buttons that was throwing the spacing off
Bump some Gems to fix some CVE things.
add/fix translations
fix base shuffle to shift instead of pop because it appends content
Merge pull request #766 from concerto/sequential_content

Fix base shuffle to shift from the front instead of pop from the back.

Since we are appending content, we should pull from the front to make sure we use that content first. (FIFO instead of FILO)
add missing translation
make translation key singular for consistency
Clean up an i18n deprecation warning
Made initial commits for new moderation user interface: added moderate buttons to submissions#index, added popup forms, wired up actions
Fixing merge conflicts
Fixing Gemfile.lock merge conflict