How to upgrade the plugin?

###Android

$> cd (your project directory)
$> cordova plugin rm plugin.google.maps
$> cordova plugin add plugin.google.maps --variable API_KEY_FOR_ANDROID=
$> cordova plugin list

###iOS

$> cordova -v
3.6.3-0.2.13
$> cd (your project directory)
$> cordova plugin rm plugin.google.maps
$> cordova save plugins --experimental
$> cordova platform rm ios
$> cordova platform add ios
$> cordova restore plugins  --experimental
$> cordova plugin add plugin.google.maps --variable API_KEY_FOR_IOS=
$> cordova plugin list