Added the ability to specify a min and max zoom level on the GMap.
Fixed code formatting of zoom limit changes.
Reverted examples pom.xml back to it's original state, as it was accidentally committed on the zoom limit changes.
Adjusted code formatting for the zoom limit changes.
Adjusted code formatting for the zoom limit changes.
Added a check for min and max zoom levels that are < 0.
Merge pull request #290 from PKromhout/master

[gmap3] Added the ability to specify a min and max zoom level on the GMap