Bump plugin version to 3.1.2 (#708)

Author: alexandergoncharov-zz

plugin.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<plugin xmlns="http://apache.org/cordova/ns/plugins/1.0" id="code-push" version="3.1.1">
+<plugin xmlns="http://apache.org/cordova/ns/plugins/1.0" id="code-push" version="3.1.2">
 	<name>CodePushAcquisition</name>
 	<description>CodePush Acquisition Plugin for Apache Cordova</description>
 	<license>MIT</license>