Issue #20 Handlers to toggle reminders button show

Clicking on the reminders button now shows the popover in a toggle effect.
Stop propagation of events coming through the popover so that it can't close itself
that way.
Issue #31 Defaults to event for country and edit

Events by default should not have a full country name and should be
uneditable.
Issue #23 Use clear with set to defaults

Just clearing an image gets rid of all important properties.
Combine clear with set to defaults so that the image is still functional
Issue #23 Add test case for image trimmer state

Image trimmer should not hold on to any state between images
Issue #23 Create a new deferred for each image

Don't use the already resolved deferred object from the last image.
Merge branch 'master' into event_reminders
Issue #20 Move button style out of event tool

Event popovers are new using the event card as their container so their
styles cannot be so nested.
Issue #23 Introduce reminders model and collection

Create the basic model and collection for the reminders.
Give events an instance of the reminders collection which they will
use to get all their reminders.
Issue #23 Build out reminders api

Build out methods for adding and removing reminders as well as getting an array
of all reminder times currently created.