Bump up plugin version

To Handle weird hanging cases from when `getUnusedAppRestrictionsStatus.get` is
called twice in the same thread

Actual changes are in 338a5a1 and
1225399 and involve invoking the method in a
separate thread, with a delay if needed.

plugin.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <plugin xmlns="http://www.phonegap.com/ns/plugins/1.0"
         id="cordova-plugin-em-datacollection"
-        version="1.7.0">
+        version="1.7.1">
 
   <name>DataCollection</name>
   <description>Background data collection FTW! This is the part that I really