Leaflet Maps Marker Image Extension

Extension to Leaflet Maps Marker to make markers from images.

An option is added to the image menu to create a marker from the image.
The location info in the image is used to define the location of the marker.

Tested with:

• WordPress: 3.7 to 4.1.1
• Leaflet Maps Marker: 3.9.5 to 3.9.6
• Maps Marker Pro: 1.9.1 to 2.0
• NextGEN Gallery: 2.0.66 to 2.0.77

Please contact me with suggestions for other gallery plugins that I could support.