updating Commons to 5.1.4, min required Android OS to 5

build.gradle

@@ -1,15 +1,15 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.70'
+    ext.kotlin_version = '1.2.71'
 
     repositories {
-        jcenter()
         google()
+        jcenter()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath 'com.android.tools.build:gradle:3.2.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
@@ -19,8 +19,8 @@ buildscript {
 
 allprojects {
     repositories {
-        jcenter()
         google()
+        jcenter()
         maven { url "https://jitpack.io" }
     }
 }