Fix for "invalid Maps API key" when map and blog feed were shown together.
Fix for "invalid Maps API key" when map and blog feed were shown together.

Callback for blog feed is now set using google.load() option instead of
setOnLoadCallback(), which generates a conflict with map's callback.

Fixes issue 702.

MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging