Merge hotfix-remove-broken-route (#29) into stable

Remove /officers route.

It doesn't do anything and simply results in a 500
internal server error response.
Merge hotfix-add-subcribe-button (#30) into stable

index.html: Add subscribe button to general meeting notice.

This will allow users to quickly subscribe to the mailing/interest form.
index: Subscribe + 'for Updates'.

Move icons to left of text.
Merge hotfix-adjust-buttons-on-front-page (#31) into master

Make buttons explicit on front page.

Clarify the meaning of 'subscribe' by extending the message and move
icons to the left of the button.