Improvements for MapsPro

[Josh Journey]

1. My location button for directions. Very similar to submitting a listing to get your location. In other words in the "From" field for directions for the frontend viewer be able to click a button to get their location into that field.

2. Auto complete for directions just like the address field in edit form.

3. Double click for pin change when using "Map It" on form submit. This is common practice among many map interfaces out there. Google Maps is a single click for setting a marker. Dragging a pin does the job; however precise locations can be a ways off the mark and require at least twice as much work to place the pin if having to drag the marker over and over. For example if I type the nearest town to a mountain it would often require pulling the marker from side of the map to the other over and over followed by panning the map. By going straight to the place it needs to be with a double click pin method this would require at least 50% less clicks.

4. Pan the map when dragging marker out of view. Simple JSFiddle example. This too would reduce clicks when pulling the marker many miles away from the original address location. For every field of view you wouldn't have to set the marker down and scroll the map which would make the dragging experience much smoother.

5. Map Search when submitting listing. There are scenarios where our address is 100% accurate but is improperly mapped due to an address error from the lookup provider. To overcome this a search would allow us to find the next best location and set the pin.