Move share buttons into partial.
Add 'enable voting' setting, defaulted to true.
Hide "vote" button if voting is not enabled.
Add comments to make vote form partial more readable.
Show a "voting is closed" message on vote form if voting is disabled.
Add site title to the voting closed message.
Filter login and vote actions based on voting_enabled setting.
Rename filter to voting_disable.
Modify column order, created/updated should be last.
Updated values to 1/null and on/off.
Revert "Rename filter to voting_disable."

This reverts commit 27e3c4e0e86382532f158dab3f88581b913e9023.
Merge pull request #260 from DoSomething/add-closed-state

Add closed state