new_event_proposal_button
Renders a "Propose an event" button. This will automatically render as a "Log in to propose" button if the user is not logged in. The button text and the button CSS classes can be customized.
Examples
Customizing the button text
{% new_event_proposal_button "Propose, right now!" %}
Customizing the button text and the CSS class
{% new_event_proposal_button "Propose, or don't" btn-warning %}