chore(android): update android engine requirement <11.0.0 (#329)

* chore(android): update android engine requirement <11.0.0
* chore(android): use re-worded engine requirement

Author: erisu

README.md

@@ -72,6 +72,9 @@ This plugin displays and hides a splash screen while your web application is lau
 ## Supported Platforms
 
 - Android
+  __Note__: Android implementation has been moved to the core framework.
+    If using `[email protected]` or earlier, use `[email protected]`
+    If using `[email protected]` or later and exclusively developing for Android, this plugin can be uninstalled.
 - iOS  
   __Note__: iOS implementation has been moved to the core framework.  
     If using `cordova-ios@5` or earlier, use `cordova-plugin-splashscreen@5`  

package-lock.json

@@ -34,6 +34,10 @@
         "cordova-android": ">=3.6.0",
         "cordova-windows": ">=4.4.0"
       },
+      "6.0.2": {
+        "cordova-android": ">=3.6.0 <11.0.0",
+        "cordova-windows": ">=4.4.0"
+      },
       "7.0.0": {
         "cordova": ">100"
       }

package.json

@@ -29,7 +29,7 @@
     <issue>https://github.com/apache/cordova-plugin-splashscreen/issues</issue>
 
     <engines>
-        <engine name="cordova-android" version=">=3.6.0" /><!-- Requires CordovaPlugin.preferences -->
+        <engine name="cordova-android" version=">=3.6.0 <11.0.0" /><!-- Requires CordovaPlugin.preferences -->
         <engine name="cordova-windows" version=">=4.4.0" />
     </engines>