Upped version number.

app/build.gradle

@@ -2,13 +2,13 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 26
-    buildToolsVersion "26.0.2"
+    buildToolsVersion '27.0.3'
     defaultConfig {
         applicationId "com.davidshewitt.admincontrol"
         minSdkVersion 22
         targetSdkVersion 26
-        versionCode 4
-        versionName "1.0.3"
+        versionCode 5
+        versionName "1.0.4"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {