Use map_content explicitly with PODS

[GoogleCodeExporter]

It looks like the PODS plugin can fool Geo Mashup's methods of determining a 
default map_content, resulting in a contextual map where you'd normally get a 
global one. 

To avoid this, make it a habit to supply the map_content parameter if you're 
using PODS.

Original issue reported on code.google.com by dylankk...@gmail.com on 25 Feb 2014 at 5:59